Currently he is at UCLA which is technically not an Ivy League place but a public ivy. As for thinkers of equal caliber, he is probably quite alone anyway. But

Currently he is at UCLA which is technically not an Ivy League place but a public ivy. As for thinkers of equal caliber, he is probably quite alone anyway. But if you look at the list of Fields medalists, there is a lot of europeans in that list who are still in europe: https://en.wikipedia.org/wiki/Fields_Medal#List_of_Fields_medalists https://en.wikipedia.org/wiki/Fields_Medal#List_of_Fields_me...