While I didn’t know what to expect at the studio, I had reason to think I might not be terrible. Meanwhile, high performers also think they’re better than average but underappreciate the extent to which they are, because of the “curse of knowledge,” in which we think our knowledge is universally shared. If you’re going into battle, or if you’re going to the Olympic Games, you definitely won’t just go, “Nah, I won’t practice today. When they’re wrong, they’re even more confident that they’re right than novices are. The boundary line between what you know and what you don’t know is fuzzy.