An interesting case is famous educator László Polgár, who believed that "geniuses are made, not born" and raised his three daughters to become very, very succes

An interesting case is famous educator László Polgár, who believed that "geniuses are made, not born" and raised his three daughters to become very, very successful in chess with "two of them becoming the best and second best women chess players in the world" (Wikipedia). He did this especially by beginning to teach them, when they were very young - four years old. "Judit was able to defeat her father at chess when she was just five" Wikipedia article: https://en.wikipedia.org/wiki/László_Polgár https://en.wikipedia.org/wiki/László_Polgár Another discussion: http://slatestarcodex.com/2017/05/30/hungarian-education-iii-mastering-the-core-teachings-of-the-budapestians/ http://slatestarcodex.com/2017/05/30/hungarian-education-iii...