Rationality

August 2026

• Aug 31, 2026ConceptsInversion: Solving Problems by Thinking BackwardInversion explained through Jacobi, Charlie Munger, the premortem, and the via negativa: why thinking backward and avoiding failure beats chasing success.14 MIN211

July 2026

• Jul 18, 2026ConceptsThe Sunk Cost Fallacy: Why We Throw Good Money After BadThe sunk cost fallacy explained: Arkes and Blumer's theatre experiment, loss aversion, the Concorde fallacy, escalation of commitment, and how to beat it.14 MIN1.3k

March 2026

• Mar 4, 2026ConceptsWhy Rational Decisions Feel Emotionally WrongRational decisions feel wrong because your brain evolved for survival, not optimization. Emotions trigger fast but logic requires slow deliberation.23 MIN35.3k

June 2025

• Jun 19, 2025ExplainersOrigins of Decision Theory: Key DevelopmentsDecision theory origins: Bernoulli introduced expected utility in 1738. Von Neumann and Morgenstern developed game theory and axioms of...40 MIN43.8k