The things he tried to teach us could be done by most students at least semi-reliably. I think practice helps here, but talent helps too, just like with learnin

The things he tried to teach us could be done by most students at least semi-reliably. I think practice helps here, but talent helps too, just like with learning to play a musical instrument. There are people for whom it comes easily, but it seems other people can be taught too. This is all anecdotal evidence, though.