It's worth adding that comparing the proportion of Jewish Nobel prize winners to Jewish people in the world might not be a fair comparison. Much of this can probably be explained by the strong correlation between being European (including Russian/Soviet) or American, and being a Nobel prize winner.
[1] https://en.m.wikipedia.org/wiki/List_of_Jewish_Nobel_laureat...
I think the comparison with other populations such as Poland still seems to point out that something about Hungary in the 20th century was special, other than the presence of many Jewish people.
This over representation of high IQ is similar to the historical over representation in Nobel prizes for hard sciences.
One should not make irresponsible comments like this. Yes, I'm Hungarian but claims like these are just plain stupid.
Some might be, doesn't mean all of them are. So [citation needed].
[1] https://en.wikipedia.org/wiki/J%C3%A1nos_Bolyai [2] https://en.wikipedia.org/wiki/Theodore_von_Kármán [3] https://en.wikipedia.org/wiki/Leo_Szilard [4] https://en.wikipedia.org/wiki/Dennis_Gabor [5] https://en.wikipedia.org/wiki/Edward_Teller [6] https://en.wikipedia.org/wiki/Paul_Erd%C5%91s [7] https://en.wikipedia.org/wiki/John_von_Neumann