Author Archives: gcochran9

Reverse salients

Edison thought in terms of reverse salients and critical problems. “Reverse salients are areas of research and development that are lagging in some obvious way behind the general line of advance. Critical problems are the research questions, cast in terms … Continue reading

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Sensitive Detection of gene flow

One problem with arguing with ignorant people is that they don’t usually have indicator lights that tell you exactly how ignorant they are.  This matters when you’re trying to explain something: it’s not always clear  how much goes without saying. … Continue reading

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Ashkenazi PRS

There are now a couple of surveys with Ashkenazi EA polygenic scores.  We don’t know that the populations were representative, but probably they weren’t far off. Scores correspond to an IQ of about 110. Personally, I’m still pulling for 112. … Continue reading

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Herbert West

Just ran into an interesting question from a biology problem set: ” Using the laws of thermodynamics, explain why it’s impossible to re-animate organisms that have died ( making Frankenstein’s monster and zombies impossible so we don’t have to worry … Continue reading

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Homo Japonicus

Near glacial maxima, archaic humans could have walked to Japan, so they surely did. Elephants made it. Most of the time, even in the ice ages,  Japan was fairly isolated. Maybe the northern path through Sakhalin was open  (although glaciated) … Continue reading

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LINEs, SINEs, and Sundaland

Maybe ten years ago,  Henry was analyzing some retrotransposons, sequences that randomly make and insert more copies of themselves. These mutations are statistically simpler in some ways that nucleotide substitutions:  insertions are unique. Henry had gotten some sign reversed while … Continue reading

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No, No, Not Rogov!

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