Thinking in Bets

The TL;DR

A world-champion poker player's guide to making better decisions under uncertainty. Every decision is a bet on an unknown future, and most people judge decision quality by its outcome — a bias Annie Duke calls "resulting." The better approach: separate decision quality from outcome quality, and judge yourself on the process. Calibrate confidence with explicit percentages rather than vague language. Build truth-seeking groups that reward accuracy over agreement. Use mental time travel: pre-mortems before a decision and the 10-10-10 rule (how will this feel in 10 minutes, 10 months, and 10 years). The framework applies to product decisions, investments, and life choices.

Core ideas

• 1Every decision is a bet on an uncertain future.
• 2Resulting: judging a decision by its outcome is a major bias.
• 3Calibrate confidence — say 70%, not 'I think so'.
• 4Form truth-seeking groups that reward accuracy, not agreement.
• 5Use mental time travel: pre-mortems and 10-10-10.

Key quotes

Apply it this week

• →Run a pre-mortem before every major launch.
• →Assign a confidence % to your next three predictions, then track.
• →In retros, separate the decision from the outcome explicitly.