Harry Potter and the Methods of Rationality

122 chapters

Last updated Jan 09, 2026

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Chapter 1 A Day of Very Low Probability

Chapter 2 Everything I Believe Is False

Chapter 3 Comparing Reality To Its Alternatives

Chapter 4 The Efficient Market Hypothesis

Chapter 5 The Fundamental Attribution Error

Chapter 6 The Planning Fallacy

Chapter 7 Reciprocation

Chapter 8 Positive Bias

Chapter 9 Title Redacted, Part I

Chapter 10 Self Awareness, Part II

Chapter 11 Omake Files 1, 2, 3

Chapter 12 Impulse Control

Chapter 13 Asking the Wrong Questions

Chapter 14 The Unknown and the Unknowable

Chapter 15 Conscientiousness

Chapter 16 Lateral Thinking

Chapter 17 Locating the Hypothesis

Chapter 18 Dominance Hierarchies

Chapter 19 Delayed Gratification

Chapter 20 Bayes's Theorem

Chapter 21 Rationalization

Chapter 22 The Scientific Method

Chapter 23 Belief in Belief

Chapter 24 Machiavellian Intelligence Hypothesis

Chapter 25 Hold Off on Proposing Solutions

Chapter 26 Noticing Confusion

Chapter 27 Empathy

Chapter 28 Reductionism

Chapter 29 Egocentric Bias

Chapter 30 Working in Groups, Pt 1

Chapter 31 Working in Groups, Pt 2

Chapter 32 Personal Financial Management

Chapter 33 Coordination Problems, Pt 1

Chapter 34 Coordination Problems, Pt 2

Chapter 35 Coordination Problems, Pt 3

Chapter 36 Status Differentials

Chapter 37 Crossing the Boundary

Chapter 38 The Cardinal Sin

Chapter 39 Pretending to be Wise, Pt 1

Chapter 40 Pretending to be Wise, Pt 2

Chapter 41 Frontal Override

Chapter 42 Courage

Chapter 43 Humanism, Pt 1

Chapter 44 Humanism, Pt 2

Chapter 45 Humanism, Pt 3

Chapter 46 Humanism, Pt 4

Chapter 47 Personhood Theory

Chapter 48 Utilitarian Priorities

Chapter 49 Prior Information

Chapter 50 Self Centeredness

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