[leethargo]

I did actually do graduate studies in math. Early on I went to Paris for 2 semesters where I tried to follow a course on category theory, in preparation to algebraic geometry. Even though I did lots of abstract algebra before that, the intensity was too much and I could not keep pace.

Interestingly, the Chinese students in that class did fairly well, even though they could not follow the actual lectures (given in French) and were studying exclusively from the lecture notes (given in English).