>>11144425Literally all of them. Getting good at a field takes time, and there's not enough hours in a day to get good in every single area of math. Everybody sucks at something.
But natural talent is not so specific that somebody is going to be a natural wizard at combinatorics and at the same time be genetically incapable of passing a PDE class.
If you're good enough at math to excel in one field, you're good enough to not suck at any of them if you try.
>>11144462The only story I've ever heard of Grothendieck embarrassing himself is the "lol 57 is prime" anecdote, which is a trivial little flub that gets blown out of proportion by redditors who want an epic story about how he was so le abstract he didn't even know any prime numbers.
Grootendick started his career as a functional analyst and then pivoted on a dime into AG and category theory. He's not a particularly good example of specialized talent.
