You can be surprised by yourself. Going to ski lessons and finding yourself good at it because your parents took you when you were five years old and you had fo

You can be surprised by yourself. Going to ski lessons and finding yourself good at it because your parents took you when you were five years old and you had forgotten you knew how to do it. You can be questioned by police as a witness and uncover details you didn't realize you knew. You can meet with old friends from high school who you didn't recognize. Unknown knowns is not a sensitive category by default, though it can be triggering uncovering painful weaknesses.