Annie Duke won over $4 million playing poker. She'll tell you it wasn't because she was always right. It was because she got better at being wrong correctly.
Her book Thinking in Bets starts with an uncomfortable truth: we judge decisions by their outcomes. If an investment pays off, we call it smart. If it doesn't, we call it dumb. But that logic is backwards. A bad decision can produce a good outcome. A great decision can produce a terrible one. Luck is real, and we systematically ignore it.
The "resulting" trap
Duke calls this "resulting" — evaluating the quality of a decision based on what happened rather than on the information available at the time. It's how investors chase last year's winners, why people sell at market bottoms (the decision "felt" bad because the outcome was bad), and why financial FOMO is so destructive.
The fix is to think in probabilities. Instead of "should I buy this stock?", ask: "Given what I know, what's the range of outcomes and their likelihoods?" You're not trying to be certain. You're trying to be calibrated.
Naval's version of the same idea
Eric Jorgenson's The Almanack of Naval Ravikant approaches decision-making differently but lands in the same place. Naval talks about the compounding of judgment: "The most important skill you can have in any domain is the ability to make good decisions, because it will generate results forever. Almost everything else is rented."
His framework: play long-term games with long-term people, avoid decisions made from fear or FOMO, and build specific knowledge — the kind no one can teach you, that you build through obsession and that the market will eventually pay you for.
The practical takeaway
Most financial mistakes aren't about strategy — they're about decision quality under pressure. Duke's advice: before making any major financial move, write down your reasoning. Not to record it, but to force clarity. The act of articulating a decision exposes assumptions you didn't know you were making.
Then, when you review it later, judge the decision on the logic — not on what the market did next.
