Can the X chromosome explain greater male variability? Seems not
Men vary more than women in most phenotypes we can measure, including intelligence. Inquisitive Bird has a summary of the intelligence findings here. Thöni & Volk 2021 provide a nice…
Embryo selection can become the norm
In discussion of my recent book review of The Past is a Future Country: The Coming Conservative Demographic Revolution, J.O.A. Rayner-Hilles questioned whether embryo selection could really become powerful enough…
Hostile sexism is live and well, but mostly in favor of women
The feminist movement can be seen as a reaction of egalitarians against then prevailing views about women vs. men, that viewed men in a too favorable light for their tastes.…
Is the past the future?
Edward Dutton (AKA. Jolly Heretic) and J.O.A. Rayner-Hilles has a new book out: The Past is a Future Country: The Coming Conservative Demographic Revolution (2022). The summary is: Since the…
Fall of the Roman Empire, polygenic score edition
We have a new study out: Piffer, D., Dutton, E., & Kirkegaard, E. O. W. (2023). Intelligence Trends in Ancient Rome: The Rise and Fall of Roman Polygenic Scores. OpenPsych,…
New paper out: Honesty, Intelligence, and Race
Together with Sebastian Jensen, I have a new paper out: Jensen, S., & Kirkegaard, E. O. W. (2023). Honesty, Intelligence, and Race. OpenPsych, 1(1). https://doi.org/10.26775/OP.2023.07.17 Research shows that honesty correlates…
Eulogy for Richard Lynn (1930-2023)
Richard Lynn passed away a few days ago in his sleep. His health had been in decline for some time, so his passing was expected. Still, it offers us a…
Music preferences 2023
Anon asks on Twitter: i'm just curious. what's your favorite genre of music? It seems like a good diversion from the usual serious posting on the blog. What I listen…
GDP problems, but what solutions?
Suppose you want to measure how well a country is doing. If you're an economist you will be immediately reaching for your trusted variant of the GDP per capita metric.…
Which occupation are you?
About a month ago this very interesting paper was published: Wolfram, T. (2023). (Not just) Intelligence stratifies the occupational hierarchy: Ranking 360 professions by IQ and non-cognitive traits. Intelligence, 98,…
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