What do you see as their edge? Is it how easily they memorize things?

They understand things the first time. I remember taking calculus in university and hitting my head against the wall because I couldn't understand the concepts.

This kid and his cohorts, they hear a concept for the first time, and they just get it. Then when it comes to doing the problems, he might struggle a little but then he gets it. He is getting 95% in calculus and the only reason he lost marks is because he made sloppy mistakes.