Wow, that's a very long way to say "Is it nature, or is it nurture ? I don't know.". But putting jokes aside - we know for sure that there are conditions that

Wow, that's a very long way to say "Is it nature, or is it nurture ? I don't know.". But putting jokes aside - we know for sure that there are conditions that limits brains capacity to learn. Be it genetical, environmental or acquired through some events (if I hit You hard enough with metal rod at right spot at head there will be some possibility for You to loose ability to retain memory). And its quite for me to believe that this conditions are discrete - I would expect some continuity. >>We genuinely do not /know/ what makes a person into someone with Feynman's intellectual abilities. We don't event know what makes people learn to think critically (a opposed to learn just to repeat facts ad verbum). If You look at debates of education specialists in my country all You can see is people that try to create some giant sieves that will pick up students that are worth investing in and throw out others.