This map is cool, but I'm still embarrassed to say I don't understand the concept of "indigenous" particularly well or why Europe, Africa, and Asia have so few indigenous people. What defines an "indigenous" people? Is it some sort of lack of genetic or cultural mixing with other peoples? Even then, did Europeans have more migrations and cultural exchange than the Native Americans, or do we merely understand European migrations better for various reasons? Or is it merely a concept of "exotic" (or perhaps "primitive"?) relative to the Eurasian mind? Or cultural and economic detachment from the Eurasian world?
Maybe it's relative geographic stability (e.g., not moving around very much)? But it seems like that's pretty arbitrary depending on how much you zoom out--i.e., if you zoom out wide to all of Europe, Europeans were very stable for a very long time, and if you zoom in tightly on a given Native American tribe, they probably migrated over a wide geographical area.
Maybe it's relative geographic stability (e.g., not moving around very much)? But it seems like that's pretty arbitrary depending on how much you zoom out--i.e., if you zoom out wide to all of Europe, Europeans were very stable for a very long time, and if you zoom in tightly on a given Native American tribe, they probably migrated over a wide geographical area.