Nos, this is a good question. However, intelligence has nothing to do with it. It's about knowing yourself and what you want to do with your life. It's about finally getting to the point where you see that being where you are is killing your soul and you know you have to walk away. I agree that intelligence and knowledge as someone else already put it, came first, then, once you are out, you can expand and grow and experiment and find out who and what you really are and what you want in life. These feelings of freedom are what I think you are alluding to.
Terri