My co-worker who once worked in an Amazon fulfillment center, said that it was the most diverse place in terms of groups represented that he had ever worked. Conversely he said it was the most segregated environment he had ever been in, with different groups strictly regulating their interaction with other groups, say at lunch, to what they were required to do by work. I know it's anecdota, but I still don't know where I can square this information with the interactions and conversations we are having today. Maybe one-on-one interactions are the way to go, no group tribalism going on.