Even the best decision doesn't yield the best outcome every time. There's always an element of luck that you can't control, and there's always information hidden from view. So the key to long-term success (and avoiding worrying yourself to death) is to think in bets: How sure am I? What are the possible ways things could turn out? What decision has the highest odds of success? Did I land in the unlucky 10% on the strategy that works 90% of the time? Or is my success attributable to dumb luck rather than great decision making?
Poker > Chess
Written by Annie Duke