Reminder that "race" is not at all a well defined concept genetically. Mixing genetic material across regions is the norm for humanity, not the exception. https

Reminder that "race" is not at all a well defined concept genetically. Mixing genetic material across regions is the norm for humanity, not the exception. https://sitn.hms.harvard.edu/flash/2017/science-genetics-reshaping-race-debate-21st-century/ https://sitn.hms.harvard.edu/flash/2017/science-genetics-res... "Race" as a social concept is still meaningful and I'm glad the US census measures people's self-identified racial categories. But it's a complicated topic.