<former brain scientist> There is another famous case about a person who had a (physically) big head, to the point that people commented on it. Person ends up g

<former brain scientist> There is another famous case about a person who had a (physically) big head, to the point that people commented on it. Person ends up getting a Ph.D. in math, because hey, you know, big head, right? Turned out that the head size was due to a hydrocephalic condition-- the person barely had any brain tissue, most of the contents of their skull was fluid. Yes, the brain is pretty amazing.