If you were playing golf and the orange circles were the holes on the putting green, which hole would you put money on that you could make in one shot? Bigger is better, right? Well, would you believe the orange circles are both the same size? Yes, they most certainly are. This is a popular size illusion, our perception of the center circle is influenced by the context of its surroundings. Today I am over at Scientific American talking about a recent study that uses this very size illusion to change a person’s athletic performance. Interesting how one’s perception might make or break whether or not they get in the winner’s circle.