To what can we attribute the disproportionate prominence of individuals of Hungarian-Jewish heritage among the leading figures in mathematics and computer science?

Besides John Von Neumann who was a hungarian jew and well known for his contributions to math and theoretical CS I recently learned that Robert Tarjan is also hungarian jewish from his father’s side.

Furthermore I investigated the ancestry of the Knuth Prize winners(perhaps the top CS theory prize) and found out that at least 3! out of 29 are hungarian jews.

Besides their mathematical culture what other reasons may be for this? (e.gThe hungarian jews have a combination of Jewish, European and central asian genes that give them unique exceptional intellectual capacities in both the memroy, verbal and spatial domains.)