I have no insight to offer here but I would just like to say a very very interesting post.

There’s a sense in which my situation is actually not so unusual. The finding that people who are good at one cognitive task tend to be good at another is based on the study of people of average intelligence. It becomes less and less true as you look at people of progressively higher intelligence. Twice exceptional children are not very rare amongst intellectually gifted children.

I had no idea this was the case. Again, nor am I in the Grothendieck category, but I am very uneven in abilities too. I thought I was an exception in that regard.