Yeah ok, but the whole environmental thing can only go so far. Only the very uneducated choose a side in the nature vs nurture debate (and most people choose nurture) because we know, scientifically, that it is a factor of both.
If you took a random kid and exposed them to the identical environmental stimuli as Motzart, they would NOT be as good of a composer. Ditto if you took a kid and tried to make them into Gretzky.