I'm not sure that's true. I got 100% for math at college doing the paper in half the time that others did. I was published by the time I was 10 years old. I have a good eye for decor, etc. My daughter is just as good at math as I am (or my late father was). She is an incredible fine artist. I understand your point, and it is probably true for many people, but there are definitely people who can do it all.