April 3, 2011
This / video / presents in a cohesive, well-structured fashion ideas that I’ve long considered. Much more tidy than my rambling thoughts.
My only objection is that he doesn’t clarify an apparent coexistence of the ancestral female and male. They were separated by up to 80,000 years. Links to / Mitochondrial Eve / and / Y-chromosomal Adam / here.
Also, it doesn’t mean they were the only humans alive, only that through the vagaries of descent, only one line has managed to come down to modern times exclusively from mother to daughter. No woman in that lineage had only sons. Ditto for the ‘Adam’. Every other man’s line produced only daughters at some point, and the direct link was lost.