With practice you can get to be the best within your biological constraints.

If we take two people who have exactly the same sort of lesion or area of damage in the brain and then we do cognitive tests on them, you know, one person might have a very severe deficit in a certain area of thinking and another person might not with the same exact lesion. So there is a lot of differences and you can't just look at one brain and understand the whole picture.

With practice you can get to be the best within your biological constraints.

It happens that there are a lot of people who are very talented who also happen to have a mental disorder. A lot of the mental disorders are initially things that are adaptive. Like even OCD, it's good to sort of have structure and have certain rituals but when it gets to be extreme then it becomes problematic.

There has been studies looking at like musical talent and it shows that there is actually a really large genetic component involved.

People who have certain types of mental illness have different wiring in their brain. And part of that having a different kind of wiring so to speak could in some sense be related to having a different way of thinking which could produce genius type thoughts.