Why Certainty is a Success Killer

Take it from a poker pro and “uncertainty evangelist” like Annie Duke—it’s okay to say “I don’t know.”

Embracing what you don’t know can help you make surer bets on the future. Here, Duke gives an eye-opening lesson on how to recalibrate your beliefs, the difference between confidence and certainty, and how to use uncertainty to cultivate flexible thinking and smarter decision-making.