It's the unknown I'm talking about. I'm talking specific skills. How is the ability to play the harpsichord inherited genetically? Is there a gene that gives you great golf skills? Just being highly intelligent doesn't specifically predict you to be an extraordinary sculptor.

What's the simplest explanation? There's a specific gene for each and every human activity that causes extraordinary natural ability in that activity, or that there isn't and ability/results are more of a function of things like practice, discipline, and immersion at a young age?