Monthly Archives: June 2016

Algorithmic stagnation

I can get as excited about an n log n solution as anyone, but I don’t pretend to be a real expert in algorithmic analysis. But I’m interested. One upon a time, I remember people claiming that more of the … Continue reading

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The Road From Morocco

It never hurts to look at the map. Back around the glacial maximum, the world was a crappy place, with fewer inhabitable areas. Some of the high genetic differentiation in early Holocene populations may have been caused by climate-induced barriers: … Continue reading

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Imagination

There are lots of toxic ideas that haven’t been implemented solely because I have kept my own counsel – the dark forces that would have enthusiastically welcomed them could never have thought of them by themselves. This is the only … Continue reading

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First Farmers

There’s a new paper (by Iosif Lazaridis and others) out on the genetics of the world’s first farmers in the Middle East. There are a number of interesting points. They find that early farming populations are about half descended from … Continue reading

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Who’s on first?

There’s a new paper out on the people of the Americas, by Pontus Skoglund and David Reich. The main picture is solidifying: The main Amerindian migration consists of a population that is approximately 40% ancient Siberian and 60% Han-like. Calculations … Continue reading

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In a handbasket

It strikes me that in many ways, life was gradually getting harder in the Old World, especially in the cradles of civilization. We know that every now and then a new infectious disease was added to the mix: smallpox probably … Continue reading

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mtDNA, Y-chromosomes, autosomal DNA

Imagine that we take men from population A, with a distinct set of Y-chromosomes, and have them father children with women from Population C. And their male descendants keep marrying women from population C: eventually we have a population (D) … Continue reading

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