I knew him at first for the minimax theorem in game theory, then I've read he was part of club of Hungarian scientists called "the Martians" and also Fermi joki

I knew him at first for the minimax theorem in game theory, then I've read he was part of club of Hungarian scientists called "the Martians" and also Fermi jokingly said the extraterrestrial life is already here and they call themselves the Hungarians. I loled and moved to the next theorem..minimax is meh.