Balaji Srinivasan's Recommended Reading

← Reference

Balaji's recommended books, organized in the same sparse reference format, with Amazon title links and expandable six-point study notes.

Primary source: The Anthology of Balaji — Recommended Reading
Chapter note: The source page does not provide a table of contents for every book, and editions differ. I therefore do not invent chapter titles. Each expanded book provides six chapter-study lenses with six pithy points; these are designed to be applied to the book's actual chapters while reading.

Math & Science

11 books / series

01
Richard Feynman’s Lectures — Richard Feynman
Technical thinking as intellectual assertiveness: ask simple questions, verify rather than cargo-cult, and learn to think independently.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
02
Princeton Companion of Mathematics — Timothy Gowers
Balaji calls it his number-one technical book: essentially a broad mathematical compendium worth revisiting for years.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
03
Schaum's Outlines — Joel Lerner & James Cashin
A practice-first way to keep quantitative skills sharp; Balaji compares working problems to meditation or lifting weights.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
04
1000 Exercises in Probability — Geoffrey Grimmett & David Stirzaker
Evergreen probability practice that keeps mathematical reasoning sharp through Markov chains, eigenvalues, and problem solving.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
05
The Nature of Mathematical Modeling — Neil Gershenfeld
An older but unusually dense introduction to mathematical modeling and the power of compact explanations.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
06
Physics for Scientists and Engineers — Paul Tipler
A technical foundation for understanding physical systems quantitatively.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
07
Visual Complex Analysis — Tristan Needham
A visual, intuitive compendium that makes complex analysis easier to see rather than merely manipulate symbolically.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
08
Visual Complex Functions — Elias Wegert
A systematic visual treatment of complex functions through colored contour plots.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
09
Innumeracy: Mathematical Illiteracy and Its Consequences — John Allen Paulos
A warning against quantitative illiteracy and the errors it creates in everyday reasoning.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
10
The Man Who Knew Infinity: A Life of the Genius Ramanujan — Robert Kanigel
The life of Ramanujan as a window into mathematical genius, self-teaching, and discovery.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
11
Test-Driven Development with Python: Obey the Testing Goat — Harry Percival
A practical guide to testing Python applications beyond isolated functions, improving coding discipline at scale.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

For Founders

9 books / series

12
Where Is My Flying Car? — Josh Storrs Hall
A direct provocation to take technological progress seriously.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
13
High Output Management — Andy Grove
The operator's manual for increasing organizational output through leverage, meetings, production processes, and management.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
14
Only the Paranoid Survive — Andy Grove
How leaders recognize and navigate strategic inflection points when an industry's rules change.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
15
The Great CEO Within — Matt Mochary
A practical operating manual for founders and CEOs; parts were used at Coinbase.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
16
How Innovation Works: And Why It Flourishes in Freedom — Matt Ridley
Why innovation repeatedly comes from experimentation and often has to fight established interests.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
17
The Sovereign Individual — James Dale Davidson & William Rees-Mogg
A prescient framework for technology-driven shifts in power, sovereignty, and startup opportunity; Balaji rereads it with a pen.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
18
Technological Revolutions and Financial Capital — Carlota Perez
Technology follows a boom, disappointment, and deployment cycle; the people who persist through the trough build the future.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
19
Indistractable — Nir Eyal
A practical psychology of controlling distraction without treating technology itself as the enemy.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
20
The Cold Start Problem — Andrew Chen
A framework for bootstrapping communities and networks when the product becomes more valuable as participation grows.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

History

24 books / series

21
The Gray Lady Winked — Ashley Rindsberg
A 10/10 recommendation on media narratives and institutional incentives; Balaji puts it alongside The Sovereign Individual.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
22
Merchants of Truth — Jill Abramson
How business incentives and pageviews shaped editorial processes inside major news organizations.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
23
AI Superpowers — Kai-Fu Lee
A history of China's technology ecosystem and a useful account of execution speed and innovation.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
24
Catching Fire — Richard Wrangham
Fire relaxed a biological energy constraint, helped enlarge human brains, and illustrates how technology co-evolves with humanity.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
25
Who We Are and How We Got Here — David Reich
Human genetic history reveals migration, mixing, and conflict that textual histories can obscure or lose.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
26
Reputation and Power: Organizational Image and Pharmaceutical Regulation at the FDA — Daniel Carpenter
How reputation becomes institutional power, illustrated through the FDA's authority and regulatory influence.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
27
The Truth Machine — Michael Casey & Paul Vigna
An accessible explanation of how blockchains can establish certain kinds of truth in adversarial environments.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
28
The Internet of Money Volume 1 — Andreas Antonopoulos
A broad-audience explanation of Bitcoin's ideas through Andreas Antonopoulos's talks.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
29
Seeing Like a State — James C. Scott
How states make populations legible, and why centralized categories can distort the reality they try to govern.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
30
From Third World to First — Lee Kuan Yew
Lee Kuan Yew's account of Singapore's transformation and an example of a well-run state.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
31
History Has Begun — Bruno Maçães
A provocative thesis that America is becoming increasingly virtual, organized around narratives, fantasies, and imagined futures.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
32
The Craft — John Dickie
Why the history and rituals of Freemasonry can be useful inspiration for digital communities and NFT collections.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
33
Three Felonies A Day: How the Feds Target the Innocent — Harvey Silverglate
A study of enforcement discretion and how enormous legal power can operate through selective prosecution.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
34
Rules for Radicals — Saul Alinsky
The counterpart to The Prince: a playbook for outsiders trying to acquire political power rather than preserve it.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
35
Principles for Dealing with the Changing Economic Order — Ray Dalio
A framework for understanding debt cycles, reserve currencies, and the rise and decline of great powers.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
36
War and Peace and War: The Rise and Fall of Empires — Peter Turchin
How quantitative methods can be used to identify recurring cycles in the rise and fall of societies.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
37
The Fourth Turning: An American Prophecy — William Strauss & Neil Howe
A cyclical theory of generations and crisis, written decades before its forecast of 2020s conflict.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
38
How the Internet Happened: From Netscape to the iPhone — Brian McCullough
A reminder that the consumer internet era is surprisingly young and that smartphones transformed adoption.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
39
A Gentle Introduction to Unqualified Reservations — Mencius Moldbug
A broad survey of unusual interpretations of Western history, especially the nineteenth and twentieth centuries.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
40
The Gulag Archipelago — Aleksandr I. Solzhenitsyn
A firsthand literary and historical account of what Soviet repression was actually like.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
41
The House of Government: A Saga of the Russian Revolution — Yuri Slezkine
A detailed account of how the Soviet revolutionary state actually operated.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
42
The Journalist and the Murderer — Janet Malcolm
A study of how journalists can befriend subjects while simultaneously betraying them through the demands of publishing.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
43
Wall Street and the Bolshevik Revolution — Antony Sutton
A controversial investigation into financial connections and claims about capitalist support for the Bolshevik revolution.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.
44
Wall Street and the Rise of Hitler — Antony Sutton
A controversial investigation into financial connections and claims about capitalist support for fascism.

Six chapter-study lenses × six pithy points. Expand to read.

1. Foundation

Define the problem, vocabulary, and central thesis introduced by the author.

  1. 1 · Core: Define the problem, vocabulary, and central thesis introduced by the author.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

2. Mechanism

Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.

  1. 1 · Core: Trace the causal chain, incentives, technical process, or historical forces underneath the thesis.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

3. Evidence

Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.

  1. 1 · Core: Identify the strongest examples, experiments, cases, calculations, or historical episodes used as support.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

4. Tension

Capture the important counterargument, limitation, trade-off, or failure mode.

  1. 1 · Core: Capture the important counterargument, limitation, trade-off, or failure mode.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

5. Application

Convert the idea into a practical question, decision rule, or habit for modern use.

  1. 1 · Core: Convert the idea into a practical question, decision rule, or habit for modern use.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.

6. Mental Model

Reduce the chapter to one durable sentence and connect it to the next chapter's question.

  1. 1 · Core: Reduce the chapter to one durable sentence and connect it to the next chapter's question.
  2. 2 · Mechanism: Follow the author's explanation of what causes what; do not stop at the headline.
  3. 3 · Evidence: Mark the strongest example, calculation, case, experiment, or historical episode in the chapter.
  4. 4 · Tension: Record the assumption, trade-off, counterexample, or failure mode that complicates the argument.
  5. 5 · Application: Turn the chapter's idea into one question, decision rule, or behavior you can use.
  6. 6 · Takeaway: Compress the chapter into one pithy mental model and ask how it changes your view of the next chapter.