90% of Ancient Humans Vanished. We Reconstructed Their History - David Reich - #526

Into the Impossible With Brian Keating

Brian Keating

Physics, Natural Sciences, Science

4.7 • 1.1K Ratings

🗓️ 31 October 2025

⏱️ 72 minutes

🔗️ Recording | iTunes | RSS

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Summary

Get $50 off the annual plan at https://shortform.com/impossible The genetic differences we obsess over. The basis for nationalism, racism and tribal thinking emerged in just the last 70,000 years. David Reich is about to show us that the past is far stranger, more violent, and more interconnected than we could ever have imagined. 90% population replacements happened in just a few centuries in the blink of a cosmic eye. David and his team reconstructed human migration patterns and discovered ghost populations, entire civilizations that vanished without any archeological trace. These people built Stonehenge. These people crossed into the Americas. These people left no trace who they are, except for the code that lurks within each of us. KEY TAKEAWAYS 00:00 Ancient vs. Modern Populations 08:55 Ancient DNA Extraction Methods 11:55 Ancient DNA Extraction Process 16:10 "Decoding the Genetic Code" 24:41 "Neanderthals, Denisovans, Human Genomics" 31:05 "DNA Fragmentation Across Generations" 35:54 "Calibration, Culture, and Heritage" 39:34 Identity, Connection, and Myth Making 47:58 "Future Linguistic Biases and Bottlenecks" 50:44 Human Ancestry and DNA Depth 56:13 "Origins, Identity, and Genetic Stories" 01:02:39 "Dream Specimens and Cosmic Mysteries" 01:06:57 "Decoding Humanity's Collective Memory" 01:10:58 Ancient Origins and Human Connections - Get My NEW Book: Focus Like a Nobel Prize Winner: https://www.amazon.com/dp/B0FN8DH6SX?ref_=pe_93986420_775043100 Please join my mailing list here 👉 https://briankeating.com/yt to win a meteorite 💥 - Join this channel to get access to perks like monthly Office Hours: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join 📚 Get a copy of my books: Think Like a Nobel Prize Winner, with life changing interviews with 9 Nobel Prizewinners: https://a.co/d/03ezQFu My tell-all cosmic memoir Losing the Nobel Prize: http://amzn.to/2sa5UpA The first-ever audiobook from Galileo: Dialogue Concerning the Two Chief World Systems: Ptolemaic and Copernican https://a.co/d/iZPi9Un Watch my most popular videos:📺 Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw Follow me to ask questions of my guests: 🏄‍♂️ Twitter: https://twitter.com/DrBrianKeating 🔔 Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 📝 Join my mailing list; just click here http://briankeating.com/list ✍️ Detailed Blog posts here: https://briankeating.com/blog 🎙️ Listen on audio-only platforms: https://briankeating.com/podcast #universe #podcast #briankeating #intotheimpossible #science #astronomy #cosmology #cosmicmicrowavebackground #intotheimpossible #briankeating #davidreich Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	The genetic differences we obsess over.
0:02.0	The basis for nationalism, racism, and tribal thinking emerged in just the last 70,000 years.
0:07.5	David Reich is about to show us that the past is far stranger, more violent, and more interconnected than we could ever have imagined.
0:14.5	90% population replacements happened in just a few centuries, a blink of a cosmic eye.
0:20.5	David and his team reconstructed human migration patterns and discovered ghost populations.
0:25.2	Entire civilizations that vanished without any archaeological trace.
0:29.1	These people built Stonehenge.
0:30.6	These people crossed into the Americas.
0:32.4	These people left no trace who they are, except for the code that lurks within each of us. What if I told you that
0:38.6	everyone alive today, all a billion of us, can trace their DNA back to a group so small
0:43.6	they could fit in a modern football stadium? And that this near extinction event 70,000 years ago
0:50.4	explains everything from why you get certain diseases to why humans are so similar
0:54.8	genetically compared to other species. Soon we'll discuss with Harvard geneticist, David Reich,
1:00.9	how he has discovered all these facts and many more from extracting DNA from bonds. They
1:05.5	shouldn't even have any genetic material left in them, but still do. And he's performed almost
1:10.3	miraculous work in the
1:11.6	laboratory and in the field. But first, let me tell you about what's called a ghost population,
1:16.8	an entire civilization that vanished without leaving a single archaeological trace. Yet David and his
1:22.7	team have tracked genetic fingerprints still hiding in your genome right now.
1:28.6	David, I just came back from the UK.
1:30.3	I was at many different sites there, including the British Museum, which has an awful lot of
1:35.1	objects that we're going to talk about.
	...

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