He wrote a book called Bring Up Genius and recruited an interested woman to marry him so they could test his philosophy by raising children together.He said a bunch of stuff on how ‘natural talent’ was meaningless and so any child could become a prodigy with the right upbringing.Also they spoke seven languages, including Esperanto.Their immense success suggests that education can have a major effect even on such traditional genius-requiring domains as chess ability.
It suggests that chess grandmasters probably have IQs above 160.
We would expect them to need much more practice to achieve a level of proficiency similar to those chess masters, and indeed that seems like what happens.
(all of this is confounded by them being women and almost all the other equally-good chess masters being men.
As far as I know, there’s only one Hungarian educator with magic powers, and (like all good wizards) his secrets are maddeningly hard to find.
Laszlo Polgar studied intelligence in university, and decided he had discovered the basic principles behind raising any child to be a genius.