Overview: Bet you could explain something as basic as how a zipper works? Or correctly draw something as simple as a bicycle? If you said yes, you likely bet wrong... but don't worry it's not just you! When you stop and think about it, you're probably not that aware of all of the things you don't understand. The fact is we go through our daily lives feeling pretty confident in our knowledge and understanding of the world, but that confidence is mostly an illusion. In this episode of Brain Games, we'll show you firsthand just how the "illusion of knowledge" plagues the human brain and why we fall victim, again and again, to the notion that we understand more than we actually do.