I don't know about genetic stuff, I'm just trying to make a relative statement between calculus and number theory. Who knows what causes it, but there are a lo

I don't know about genetic stuff, I'm just trying to make a relative statement between calculus and number theory. Who knows what causes it, but there are a lot of smart 15 year olds who are less good at math than they are at most things. If those people really work their asses off at calculus, it works better than working their asses off at number theory. That's because calculus contains more memorization and less problem-solving.