I had found some interesting information dealing with genius and the nurturing of genius several years ago. An educational psychologist named Laszlo Polgar, had trained his young daughters from a young age to become chess prodigies.
I wrote a post about this subject in my Facebook SOTRI online tuition services page. Here is a link to that post:
https://www.facebook.com/sotrionlinetuitionservices/posts/1977066699175182