What A Simple Question Reveals About The Most Dangerous Cognitive Bias

This video dives into why we’re so bad at judging our own knowledge—aka the overconfidence bias—and how asking yourself “How confident am I that I’m right?” can reveal blind spots. You’ll see the real Dunning-Kruger curve, learn how your brain’s shortcut habits trip you up, and discover why a little overconfidence can actually fuel success.

Along the way, we meet Nick Leeson (the rogue trader who sunk Barings Bank), explore the power of timely feedback, and get practical tips for reining in that misplaced certainty. By the end, you’ll know how to spot overconfidence in yourself and others—and how to correct it before it costs you big.

Watch on YouTube