David Shenk, author of several books relating to genius talks about the idea of 'nature vs. nurture'
In fact, the reason the belief of hereditary genius has maintained it’s position so long is due to the preconceived and un-founded findings of Galton and other writers of his time. If genius is genetic, then pigs can fly and Spiderman can appear out of virtually nothing! In my opinion, I do not believe genius is purely hereditary—in fact I never believed anything can be purely attained—except heroin, but that’s another topic for discussion. Only the biochemical, and neurological agents are likely to make genius what it is, just another day in the mechanics of life. My research supporting the argument for inherent genius has treaded unsteady ground from the start. Had it of been written 200 years ago, my opinion, though logically sound, would of never gotten me through with an advanced degree in anything, so much genetics. Genetics is something that isn’t up for chance, neither is it Lamarckian. What trait makes genes unique? Much of the biochemistry of the brain depends on certain developmental factors of the genes itself which can or cannot be passed on through conception. Each strand in a DNA sequences codes for a different functional ability which matures from childhood up till adult hood. If a child is receptive to chord progressions, the ability to calculate theorems internally, or can solve a murder case in less time than it takes the police to file a case report, some neurochemical in the brain has created this phenomenon; an environment where judgment, calculation, analysis, and creativity are free of distraction, personal or outside influences and biases, mental defects or mutations, or sensitivities, thus freely opening the door to what can be described as a flawless start.