Thinking in Bets · Annie Duke

Judge decisions by their quality, not their outcome

A good decision can lead to a bad outcome, and a bad decision to a lucky one. Judging a choice only by how it turned out — 'resulting' — teaches the wrong lessons. Judge the process.

Judge a decision by its quality at the time, not by how it happened to turn out.

Former professional poker player Annie Duke calls it 'resulting': the habit of judging the quality of a decision by the quality of its outcome. Run a red light and arrive safely, and resulting says you made a good call. Drive carefully and get hit by a drunk driver, and resulting says you erred. Both conclusions are nonsense — because outcomes are a mix of decision quality and luck, and you only control one of them.

Life, like poker, deals you decisions under uncertainty with incomplete information. The skilled move is to separate the two: ask whether the decision was sound given what you knew and the odds you faced, regardless of how the dice landed this time. Good processes still produce occasional bad results, and reckless bets sometimes pay off. If you learn only from outcomes, you'll punish good thinking after bad luck and reward bad thinking after good luck. Bet on better decisions, and let the results average out over time.

Why it matters

It stops luck from teaching you the wrong lessons, so you keep improving the only thing you control: the decision itself.

Test yourself

What is 'resulting', and why is it a trap?
Show answer
Resulting is judging a decision by its outcome. It's a trap because outcomes mix skill and luck — so good decisions can look bad, and bad ones lucky.

Reading it once isn’t remembering it.

Lock this idea into memory with a 5-minute active-recall session — the science of spaced repetition, no signup.

Try this idea free →
Worth remembering? Post on X
Embed this idea on your site

A self-contained card that links back here — paste it anywhere:

Related ideas

Build the smallest thing that tests your biggest assumptionThe Lean Startup Your mind runs on two systems: fast and slowThinking, Fast and Slow Rare, unpredictable events shape history mostThe Black Swan

FAQ

What does 'resulting' mean in Thinking in Bets?
Resulting is the error of equating the quality of a decision with the quality of its outcome, ignoring the role of luck. Annie Duke argues you should evaluate the decision process instead.
How should you evaluate a decision?
By its quality given the information and odds available at the time — not by how it happened to turn out, since outcomes are influenced by chance.