Wednesday, April 9, 2025

Everyone outside of Africa (85% of the world's population) is descended from 1000 people: Dr. Rhazib Khan on PaleoAnthropology

 The Lost Civilization of Ancient Europe – Razib Khan on Hidden History & Human Origins

 https://www.youtube.com/watch?v=xcbJL6Gk0aE

 Rhazib Khan on Red Scare podcast 

 sodium [standards] is geared toward the most sensitive 20% of the population...

 austism traits are cultural...all Finnish people are austistic based on culture...[meaning they don't make eye contact...Finnish culture shares significant similarities with Swedish culture, largely due to their shared history and geographical proximity]

 Saami people came from Siberian originally and took over the original hunter gathers of Europe - still left in Finland (after the farmers and steepe people took them over in the rest of Europe). The Finnish language is closely related to Saami language.

Haplogroups are "diagnostic variable markers" in ancestry dna tests.

 Jewish men would be killed if they had sex with Christian women...by 1200 AD they were endogamic... meaning endogamy was self-marrying until the Jewish Enlightenment of 1800 AD....

 Endogamy "out marriage" in India out of caste was 1 out of 500 only - meaning one village with two castes would have the castes be more genetically different than the other sides of Europe.

 Race is real for disease stuff....Basque are 50% rH negative....they used to say Basques were cursed by the Devil because of their high miscarriage rate....

 African-Americans are 20% "white" on average.

 Ashkenazi Jews - there is Subsaharan ancestry from Roman (Italian) times (from Arabs)...Sicilians are by definition part-Jewishness...because there was so much inter-marriage.

there's 5.5 million variants - unique variations compared to the 3.2 billion genetic positions in your genome (the reference genome of what an average human is).

 30% to 40% of Pakistanis marry their cousins...second-cousins....

 Genes don't "blend" - they are digital so intuitively we perceive an average but....meaning a black Nigerian man and white women can have a fully white child.

 Razib Khan underground live lecture

Modern humans interbred with one neanderthal population. Denisovans split apart from 400,000 years ago... Denisovans are very diverse and different Denisovans were absorbed into modern humans. Papua New Guineas have 4 different Denisovan lineages in them....

 90% of ancient paleolithic hunter-gatherers of Europe had blue eyes and dark skin.

  As Early Neolithic groups expanded across Europe from Anatolia in the period from 10,000 to 5,000 years ago,1,2,3,5,6,7,8 they admixed with local Mesolithic hunter-gatherers, and by 6,000 years ago derived 20%–30% of their ancestry from these local groups.1,4,5,9 The admixed Neolithic ancestry thus found itself in a new cultural and geographical landscape, with a hypothesized increase in infectious disease load due to population density and proximity to domestic animals

 https://www.sciencedirect.com/science/article/pii/S0960982223001896

 The greatest excess of Neolithic ancestry centered on SLC24A5 (Figures 2D and S3C), with a peak of +17.82% (|Z| = 3.46). The derived SLC24A5 allele, which is carried on the Neolithic ancestry background, is one of the two alleles which contributes most to light skin pigmentation in present-day West Eurasian-ancestry populations.47 It has previously been shown to have been at relatively high frequency in the Neolithic population and absent in the Mesolithic hunter-gatherers,5 and our results show that the selection removed hunter-gatherer ancestry at this locus in later admixed Neolithic groups.

 It's not crazy that Denisovans came to the New World - 5 to 10% chance....

 

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