Why People Are So Confident When They’re Wrong

People routinely overestimate their own knowledge thanks to mental shortcuts and the classic Dunning-Kruger effect. From a quick quiz on how sure you are of your answers to jaw-dropping stories like Nick Leeson’s rogue trading or an ancient bank collapse, the video breaks down why our brains get stuck in “I’ve got this” mode—even when we don’t.

Luckily, overconfidence isn’t all bad, but staying blissfully wrong can be dangerous. By understanding the real bias graph, seeking honest feedback, and using simple tricks (like playing a tabletop game or snapping together molecular models!), you can start to spot and dial down those blind spots.

Watch on YouTube