David Reich: The truth about us, and where we come from

Harvard geneticist David Reich and his team are DNA testing the bones of ancient humans. Their explosive results are still coming in, but one thing is already certain: much of what we thought we knew about human history is simply wrong.

[jamescampi]

Thoroughly enjoyed David Reich’s presentation, analysis/interpretation of the genetic data. I find his lecture style agreeably engaging. His restrained enthusiasm for the subject matter is contagious. I look forward to future developments with additional data when it becomes available. Fascinating how our understanding of human history evolves over time. Thank you.

[MelliaBoomBot]

Ive just watched a talk from 2018 he gave about this. A whole hour. I hardly understood the complexities of dna but he was so so engaging and enthusiastic. Top marks!

[allenanderson]

Never underestimate the willingness of a human male to mate with anything and everything.

[wanderingsoul]

Loved watching David Reich after reading his book Who We Are And How We Got Here.
Thank you for uploading a great video.

[kailasnathastro]

Dear David, having heard your speeches and your books, I am strongly attracted to the scientific history of human beings evolution, population studies on the basis of Genetics. Thank you so much. I have also some points in this connection to share with you. These points are collected after my observations of the various populations. Thank you

[Yougottamovethis]

David Reich crossing his arms is so damn cute. This topic is fascinating and his presentation is accessible to those of us who whilst sharing an interest into our past, have no expertise in the subject. Thank you for uploading.

[robertbigott]

Fascinating talk. My question is how do the Egyptians fall into this big picture considering the timeline of the pyramids etc.

[mpaczkow]

This is very important work that needs to be taught in schools at early ages to dispel any biases concerning genetic origins - we come from common origins. The challenge is to create a story that individuals can relate to and (semi) accurately depicts the conclusions of these studies.

[seekwisdom]

A lot of interesting information. I really enjoyed this presentation, thank you for putting it on you tube.

[puccini]

NOT boring. In fact, riveting. Thank you.

[Tukulti-Ninurta]

He says that before 2015 the predominant hypothesis for the origin of Indo-European languages was that they spread across Europe with farming. I’m no expert, but I know this is wrong. The steppe hypothesis has long been the predominant hypothesis.

[lsporter]

You made a very complex subject understandable. Fascinating and Fabulous presentation.

[woodygilson]

Question: If every group of people come from other groups of people, and no group of people has lived anywhere for forever, how are we to understand or define "indigenous"?

[CanalCursoMLearning]

Does anyone knows when this lecture took place? (He referred to some unpublished results and would be interesting to know if the lecture is recent).

Super clear presentation, thankfully clear of technobabble!! Science at its best. Keep at this amazing and important work! Thank you.

[shaarkyygaming]

Hello everyone!
There were bones and teeth found in Bulgarian caves around 45 000 - 47 000 years old, which is changing a little bit all the years and the movements on those maps, as well as the graves of later migrated people and they civilization, the skeletons and artefacts inside the tombs and graves, there are written tablets and other artefacts, treasures and ancient civilization show around 7 000 - 8 000 to over 10 000 years ago in Bulgaria and Romania, if im not wrong there were also tablet 12 000 years old as well, the Bulgarian calendar its year 7 526 year counting now, which is means those people had already leaved there and have some kind of civilization around the black sea when was a lake and other regions there, even before that years on the calendar counted' There was a lot of founds of that periods about that cave people and later the migrated people who make that civilization in that territories.

[mikeg]

Fantastic presentation. Some of the charts seemed like they would benefit from alternate visualizations to communicate the point… or it was just over my head.

[intergalactic-banana-]

Fascinating talk, really well presented and if you need any unqualified assistants, please get in touch 😆

[larryparis]

Amazing research. I wonder, at 46:40, and what came shortly before it, with regard to India, what is the difference between the migration of the Indo-Europeans and the spread of the Yamnaya? I mean, this is somewhat addressed at 50:35, but I don't quite understand it. This is a data-dense presentation, and it's incredible. Outstanding summary at 52:58 of paleo-genetics, migration, and archaeology.

[ravindergusain]

In the case of ANI-ASI triangle the only reason you have Steppe corner is because you got samples there. Coincidently in India and neighboring populations, for much of our history people have cremated their dead causing insufficient sampling of variety. Had there been enough sample your triangle would most likely have been a hexagon and the three axis would have looked more like a melting pot. And India is much much bigger with much more mobility than europe and it has been so forever. If you go by flawed sampling than geneticist will call all of India a muslim or christian land after the next Armageddon because these are the only people burying their dead today while others will keep cremating right upto Armageddon.