TL;DR

This video dives into our most dangerous cognitive bias—overconfidence—and why we so often think we know more than we really do. It busts the simplified Dunning-Kruger graph, shows how mental shortcuts trick us into unjustified certainty, and even argues that a little healthy overconfidence can be useful.

Along the way you’ll hear real-world tales—like the rogue trader Nick Leeson and the surprising collapse of one of England’s oldest banks—and learn practical fixes, from better feedback loops to a new tabletop game designed to help you spot and curb your own hubris.

Watch on YouTube