Awesome Genealogy

After explaining how humans have fewer unique ancestors than you might think, Cameron from Minute Earth is back with another thought-provoking video. According to genealogists, there will come a day in the future where one of two things will happen: either every person on the planet will be a distant descendant, or your bloodline will be wiped out.

If you use the simple logic that each generation of humans came from two different bloodlines, you quickly realize that there have never been enough people on Earth to support that math. Minute Earth explains why that approach to genealogy doesn’t make sense and how our ancestors were far more incestuous than you’d like to think.