The interesting thing about Polgar is that he announced he would raise gifted kids before he even had them - he didn't even have a wife then, instead he looked

The interesting thing about Polgar is that he announced he would raise gifted kids before he even had them - he didn't even have a wife then, instead he looked for a wife willing to do the experiment. He wasn't obsessed about chess, he just picked it because it was easy to measure success. He then studied it himself so that he could teach his kids. Sure, it is still an anecdote, but he repeated it three times with his children. It seems incredibly lucky if all of his children just happened to be super-gifted and would have become prodigies in any discipline just because of their genes, and him knowing they would be like that before they were born.