Angela
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New interview with David Reich.
See:
https://www.gnxp.com/WordPress/2019...y-hair/?utm_source=dlvr.it&utm_medium=twitter
Absurd that such tripe was written about his views and he has to keep correcting the record.
"[COLOR=rgba(0, 0, 0, 0.85)][FONT="]So, the main argument of that piece – there really wasn’t a coherent argument – but the main one was that ancient DNA specialists – and I was the most highlighted individual there – are generalising overly simplistic pictures of the past very quickly based on two small sample sizes.[/FONT][/COLOR][COLOR=rgba(0, 0, 0, 0.85)][FONT="]So, based on just a few samples in some cases, for example, in the case of specific islands that the article was talking about, that we made statements that were grandiose and final claims about the history of a vast region. And that is untrue. In those papers we identified a very small number of these samples that were completely outside the current theories that were prevailing about the origins of people in the Pacific – the first people in two different island groups in the Pacific had less New Guinean identity than anyone in the Pacific has today. That was not predicted by the prevailing theory. So even a small sample size is sufficient to force a change in the prevailing theory.We were very careful not to make any general statement about that. All that meant was that people got from East Asia, skirting New Guinea, got to the first islands of the Pacific and are not the only ancestors of people in the Pacific today. There must have been later movements. That’s exactly what we said in the last sentence of that paper: “Further work and larger sample sizes are necessary to figure out the details of what happened.” The article instead said that we were making grand, sweeping simplistic statements, and suggested to say, have the final word, which is emphatically, what we did not do."
"A similar oversimplification, not just oversimplification but simply wrong statement, in that article was what they characterised about our work in Europe. They said that we argued that the population of Europe was entirely replaced, or nearly entirely replaced, by people from the Steppe after 5,000 years ago. But in fact, what our data paper showed was that it was not a replacement at all but a mixture process that partly affected Southern Europe and even in Northern Europe, in most groups, didn’t contribute more than half of the ancestry.[/FONT][/COLOR]
[FONT="][COLOR=rgba(0, 0, 0, 0.85)]It’s a profound event, it’s an important event but it’s very far from simplification. In fact, it’s making the situation more complex. What the piece was trying to argue was that the genetic data is painting a narrative of simplicity, of population replacement, of generalisation from small sample sizes, whereas instead it’s disrupting existing theories, it’s constraining models and it’s opening up the ability to develop more complex models. So that entire critique was not based on fact. The author never checked these critiques with me and if he had, they would have completely fallen apart."[/COLOR]
[/FONT]
"[COLOR=rgba(0, 0, 0, 0.85)][FONT="]I discussed in the[/FONT][/COLOR] New York Times[COLOR=rgba(0, 0, 0, 0.85)][FONT="] article [that] people have come to ways of talking about the nature of genetic differences in human populations or stories about our history that are oversimplifications and do not actually capture the nature of true human variation. Sometimes, that’s maybe okay, like it was in the 1970s when some of these simplifications were made and used to talk to people about the nature of relationships between populations.[/FONT][/COLOR][COLOR=rgba(0, 0, 0, 0.85)][FONT="]But now they are inadequate and they don’t describe the research that’s going on, and the public feels like the truth is being hidden from them with regard to what genetics is finding. At such times, we geneticists, rather than repeating that there’s no space for there to be average, meaningful difference across populations, need to provide guidance and say that there actually is space – it’s not much, it’s actually less than the differences that exist between individuals and populations – but there actually is space for there to have been evolutionary differences amongst populations and we need to think about and deal with them because if we don’t, genetic studies will overtake us. We need to be prepared to talk about those things."[/FONT][/COLOR]
See:
https://www.gnxp.com/WordPress/2019...y-hair/?utm_source=dlvr.it&utm_medium=twitter
Absurd that such tripe was written about his views and he has to keep correcting the record.
"[COLOR=rgba(0, 0, 0, 0.85)][FONT="]So, the main argument of that piece – there really wasn’t a coherent argument – but the main one was that ancient DNA specialists – and I was the most highlighted individual there – are generalising overly simplistic pictures of the past very quickly based on two small sample sizes.[/FONT][/COLOR][COLOR=rgba(0, 0, 0, 0.85)][FONT="]So, based on just a few samples in some cases, for example, in the case of specific islands that the article was talking about, that we made statements that were grandiose and final claims about the history of a vast region. And that is untrue. In those papers we identified a very small number of these samples that were completely outside the current theories that were prevailing about the origins of people in the Pacific – the first people in two different island groups in the Pacific had less New Guinean identity than anyone in the Pacific has today. That was not predicted by the prevailing theory. So even a small sample size is sufficient to force a change in the prevailing theory.We were very careful not to make any general statement about that. All that meant was that people got from East Asia, skirting New Guinea, got to the first islands of the Pacific and are not the only ancestors of people in the Pacific today. There must have been later movements. That’s exactly what we said in the last sentence of that paper: “Further work and larger sample sizes are necessary to figure out the details of what happened.” The article instead said that we were making grand, sweeping simplistic statements, and suggested to say, have the final word, which is emphatically, what we did not do."
"A similar oversimplification, not just oversimplification but simply wrong statement, in that article was what they characterised about our work in Europe. They said that we argued that the population of Europe was entirely replaced, or nearly entirely replaced, by people from the Steppe after 5,000 years ago. But in fact, what our data paper showed was that it was not a replacement at all but a mixture process that partly affected Southern Europe and even in Northern Europe, in most groups, didn’t contribute more than half of the ancestry.[/FONT][/COLOR]
[FONT="][COLOR=rgba(0, 0, 0, 0.85)]It’s a profound event, it’s an important event but it’s very far from simplification. In fact, it’s making the situation more complex. What the piece was trying to argue was that the genetic data is painting a narrative of simplicity, of population replacement, of generalisation from small sample sizes, whereas instead it’s disrupting existing theories, it’s constraining models and it’s opening up the ability to develop more complex models. So that entire critique was not based on fact. The author never checked these critiques with me and if he had, they would have completely fallen apart."[/COLOR]
[/FONT]
"[COLOR=rgba(0, 0, 0, 0.85)][FONT="]I discussed in the[/FONT][/COLOR] New York Times[COLOR=rgba(0, 0, 0, 0.85)][FONT="] article [that] people have come to ways of talking about the nature of genetic differences in human populations or stories about our history that are oversimplifications and do not actually capture the nature of true human variation. Sometimes, that’s maybe okay, like it was in the 1970s when some of these simplifications were made and used to talk to people about the nature of relationships between populations.[/FONT][/COLOR][COLOR=rgba(0, 0, 0, 0.85)][FONT="]But now they are inadequate and they don’t describe the research that’s going on, and the public feels like the truth is being hidden from them with regard to what genetics is finding. At such times, we geneticists, rather than repeating that there’s no space for there to be average, meaningful difference across populations, need to provide guidance and say that there actually is space – it’s not much, it’s actually less than the differences that exist between individuals and populations – but there actually is space for there to have been evolutionary differences amongst populations and we need to think about and deal with them because if we don’t, genetic studies will overtake us. We need to be prepared to talk about those things."[/FONT][/COLOR]