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The Extinction Puzzle
David Reich explores the mystery of human extinction, noting that 70,000 years ago, multiple human species coexisted, yet today only one remains. He discusses the brain size of our common ancestors with Neanderthals and suggests that genetic factors alone do not explain this phenomenon. Instead, he highlights the role of isolated groups and the impact of natural disasters and inter-group encounters leading to a series of extinctions, ultimately leaving modern humans as the last standing species.
"70,000 years ago there are half a dozen different human species all around the world and then fast forward to now there's one so something seems like a changed what do you reckon it was already the co..."
The Extinction Puzzle
David Reich introduces the mystery of human extinction, noting that 70,000 years ago, multiple human species coexisted, yet today only one remains. He discusses the brain size of our common ancestors with Neanderthals, suggesting that genetic factors alone may not explain this phenomenon. Instead, he highlights the vast network of small, isolated groups across continents, which faced numerous challenges leading to their extinction.
"70,000 years ago there are half a dozen different human species all around the world and then fast forward to now there's one so something seems like a changed what do you reckon it was already the co..."