The Unz Review: An Alternative Media Selection
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 Entire ArchiveDavide Piffer Items

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Replies to a reviewer and to blog commentators
Before posting up Piffer’s paper, I sent it to a reviewer, someone who works in intelligence research. I explained that many geneticists were dismissive about Piffer’s work on group intelligence, and asked for a critical opinion. Here is that opinion, and Piffer’s replies. Piffer also includes responses to the main themes which came out of... Read More
Predicting group intelligence averages by polygenic risk scores alone.
The figure shows standardized polygenic scores by population for Education GWAS, in descending order (1000 Genomes Populations, EA MTAG, N= 3,257 SNPs). One function of a blog is to let people shoot down ideas. Conjectures have a short half-life. Refutations always snap at their heels. David Becker, whose latest version of country IQs received trenchant... Read More
Some really interesting and quite significant publications have appeared in recent days. Each adds key pieces of evidence to the topic of HBD, and I wanted to talk about each here. I may do review columns like this periodically, somewhat akin to HBD Chick's (get well soon!) linkfests. This is nothing short of a brilliant... Read More
My weekly posts are now appearing on The Unz Review(http://www.unz.com/). By accepting Ron's invitation, I hope to reach a bigger audience and bring myself closer to other writers in the area of human biodiversity. When people work together, or simply alongside each other, minor differences can be ironed out and major differences narrowed or at... Read More
Allele dominance (source). A single copy of a dominant allele is as effective as two copies of a recessive allele. The current thinking is that intellectual capacity has increased in humans through new alleles that cause small positive effects at a large number of gene loci. It now seems that some of these new alleles... Read More
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PISA test documents at a German school (source: Theo Müller). PISA and IQ tests are informing us about differences in intellectual capacity by country. Meanwhile, genetic studies are informing us about genomic differences by country. Davide Piffer has been tapping into these two pools of data to explore the links between genes and intellectual capacity.... Read More
Eyed sewing needles from Ice Age Europe (17,000 to 10,000 BP). (source: Didier Descouens) As early modern humans spread farther north, they entered more challenging environments. This was particularly so when they left the boreal forests and entered the open steppe-tundra that covered much of northern Eurasia. Food was plentiful but largely took the form... Read More