The Most Dangerous Cognitive Bias

Derek Muller dives into overconfidence—the sneaky bug in our brains that makes us think we know more than we do. You’ll see the real Dunning-Kruger curve, learn why our noggins take mental shortcuts, and even discover why a little overconfidence can sometimes help. But beware: unchecked hubris has toppled traders like Nick Leeson and nearly brought down one of England’s oldest banks.

He also stresses the power of honest feedback for keeping confidence in check and shares tips on how to calibrate your self-assessment. Plus, if you want to gamify your journey to more realistic self-awareness, there’s a new tabletop game on Kickstarter designed to curb overconfidence in a fun, hands-on way.

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