Malcolm Gladwell's Outliers book has some interesting discussions on this point about experts.
Malcolm Gladwell’s Outliers and the Real Reason You Are a Successful Writer | I'd Rather Be Writing - Tom Johnson
He argues that those we consider natural geniuses have had some early-life advantage that we are not generally made aware of when reading popular magazine articles etc on them. He claims experts are made not born and 10000 hours seems to be a bit of a magic number!