I mean the guy states that the concepts aren't new to him. If you start from there then most people wouldn't need to study very much. I'm sure as a graduate I

I mean the guy states that the concepts aren't new to him. If you start from there then most people wouldn't need to study very much. I'm sure as a graduate I could go back, not study and score well. If you've never heard of it before then it's going to take a lot more effort to understand.