Charlotte Mueller points out in “Migration and Knowledge Transfer” (NVVN blog) that “migrants can be knowledge senders and knowledge receivers simultaneously, in their country of destination as well as in their country of origin.” Knowledge transfer and human migration can both be “circular.”
During the interwar period and much of World War II, the Parisian café Le Bosphore served as a focal point of sociability and knowledge exchange for Sephardi Jews from the former Ottoman Empire.