Sexual promiscuity by sex and orientation
There's debate about the decline of sex, or how the young people these days aren't what they used to be. There's plots like this one: I'm pretty sure there is…
German immigrant IQ is about 85 according to new study
Heiner Rindermann strikes back with a new study of immigrants in Germany: Rindermann, H., Klauk, B. & Thompson, J. (2024). Intelligence of refugees in Germany: levels, differences and possible determinants.…
“Surprisingly low IQs in developing countries”, we don’t want to know, thanks
Back in May this year, German intelligence researcher Heiner Rindermann published this study: Rindermann, H. (2024). Surprisingly low results from studies on cognitive ability in developing countries: are the results…
The Flynn effect and the co-occurrence model
Jonathan Egeland has an excellent recent paper on the Flynn effect and its paradoxes: Egeland, J. (2022). The ups and downs of intelligence: The co-occurrence model and its associated research…
European polygenic scores predict Chinese provincial differences too
If you haven't seen my new article about the new David Reich lab ancient genomes results in Aporia magazine yet, head over there now: Overwhelming evidence of recent evolution in…
Overwhelming evidence of recent evolution in West Eurasians
David Reich's team has a new kickass preprint out: Akbari, A., Barton, A. R., Gazal, S., Li, Z., Kariminejad, M., Perry, A., ... & Reich, D. (2024). Pervasive findings of…
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.…
Conspiracies and their believers
Summary Conspiracy theory has negative connotations of falseness, implausiblity or irrationality, but we also know many conspiracies are true, ranging from the ordinary criminal case (conspiracy to commit murder) to…
Does racial diversity cause lower fertility?
I know, it sounds like a far right conspiracy theory, however: Gurun, U. G., & Solomon, D. H. (2024). E Pluribus, Pauciores (Out of Many, Fewer): Diversity and Birth Rates.…
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…
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