Okay, imagine you're on a game show. There are three doors. Behind one is a car, behind the other two, goats. You pick a door, say #1. The host, who knows where the car is, opens another door, say #3, to reveal a goat. He then asks: do you want to stick with door #1 or switch to door #2? What do you do? Most people stick, but that's actually the wrong move.

Switching doors doubles your chances of winning the car. It’s wild how our brains trick us into thinking the odds are still 50/50.