Harry Potter and the Methods of Rationality

This is a mirror of Less Wrong‘s / Eliezer Yudkowsky‘s epic Harry Potter fanfic-in-progress, Harry Potter and the Methods of Rationality, produced with the consent and at the request of the author. There’s an rss feed for this mirror which updates within an hour of a new chapter being added, and hpmor.com/latest should always point to the most recent chapter. (This last could lead to spoilers if, as sometimes happens, two or more chapters are uploaded at once, so I do recommend using the Table of Contents or RSS feed.)

While I will make every effort to keep the mirror in sync, the canonical location of HP:MoR is currently at fanfiction.net. The author’s notes, fan art, and other info sections have moved here.

If you encounter any problems with this mirror, please contact webmaster@hpmor.com.

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Discussion

Warning: the following links may contain spoilers.

FanFiction.net reviews
TV Tropes
Less Wrong

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 and 2
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: Interlude: 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: Interlude: 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
Chapter 51: Title Redacted, Pt 1
Chapter 52: The Stanford Prison Experiment, Pt 2
Chapter 53: The Stanford Prison Experiment, Pt 3
Chapter 54: The Stanford Prison Experiment, Pt 4
Chapter 55: The Stanford Prison Experiment, Pt 5
Chapter 56: TSPE, Constrained Optimization, Pt 6
Chapter 57: TSPE, Constrained Cognition, Pt 7
Chapter 58: TSPE, Constrained Cognition, Pt 8
Chapter 59: TSPE, Curiosity, Pt 9
Chapter 60: The Stanford Prison Experiment, Pt 10
Chapter 61: TSPE, Secrecy and Openness, Pt 11
Chapter 62: The Stanford Prison Experiment, Final
Chapter 63: TSPE, Aftermaths
Chapter 64: Omake Files 3, Alternate Parallels
Chapter 65: Contagious Lies
Chapter 66: Self Actualization, Pt 1
Chapter 67: Self Actualization, Pt 2
Chapter 68: Self Actualization, Pt 3
Chapter 69: Self Actualization, Pt 4
Chapter 70: Self Actualization, Pt 5
Chapter 71: Self Actualization, Pt 6
Chapter 72: SA, Plausible Deniability, Pt 7
Chapter 73: SA, The Sacred and the Mundane, Pt 8
Chapter 74: SA, Escalation of Conflicts, Pt 9
Chapter 75: Self Actualization Final, Responsibility
Chapter 76: Interlude with the Confessor: Sunk Costs
Chapter 77: SA, Aftermaths: Surface Appearances
Chapter 78: Taboo Tradeoffs Prelude: Cheating
Chapter 79: Taboo Tradeoffs, Pt 1
Chapter 80: Taboo Tradeoffs, Pt 2, The Horns Effect
Chapter 81: Taboo Tradeoffs, Pt 3
Chapter 82: Taboo Tradeoffs, Final
Chapter 83: Taboo Tradeoffs, Aftermath 1
Chapter 84: Taboo Tradeoffs, Aftermath 2
Chapter 85: Taboo Tradeoffs, Aftermath 3, Distance