Explaining global variation in internet speed
I saw this on Twitter earlier today: The narrative seemed right, so at first I retweeted. But then I looked closer at the map and realized it couldn't be right.…
Norwegian cognitive inequality and its social consequences
There's a new kickass study based on Norwegian register data: Bratsberg, B., Fjell, A. M. M., Rogeberg, O. J., Skirbekk, V. F., & Walhovd, K. B. (2024). Differences in early…
Tattoos and piercings, what do they tell you about someone?
Richard Hanania and I recently wrote on Twitter/X: Naturally, my reply and his general level of trolling on the platform attracted a lot of angry, dumb replies from people with…
The ethnic meritocracy in the United Kingdom
Some of my colleagues have a new paper out: Te Nijenhuis, J., Pesta, B. J., & Fuerst, J. G. R. (n.d.). General mental ability testing and adverse impact in the…
The value of intelligence
There are many studies that report correlations between intelligence -- however measured -- and economic outcomes, mainly (self-reported) income. This is however somewhat abstract since correlations are unitless. They don't…
The first admixture mapping study for intelligence
There's a new study out of note: Xia, R., Jian, X., Rodrigue, A. L., Bressler, J., Boerwinkle, E., Cui, B., ... & Fornage, M. (2024). Admixture mapping of cognitive function…
Reaction time based intelligence measurements and race differences
There's a wide variety of different ways to measure (general) intelligence, or what researchers call g. One can estimate vocabulary size, query about verbal analogies, general knowledge, ask people to…
High IQ trans and nonbinary confirmed
If you have been paying attention, you will probably have noticed that a lot of the trans and non-binary people seem to be quite bright. Indeed, that's one of the…
On Jewish intelligence
Ah, yes, the perennial Jewish question. Historically, the Jewish question was what to do with the Jews from the perspective of those running countries: tolerate, integrate, convert, expel, or exterminate?…
Can’t say parasites causes low IQ either
Ever since Richard Lynn started compiling national intelligence averages (national IQs), there has been egalitarian minded researchers using these to find evidence of non-genetic causes of group differences. One frequently…
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