Fluoride, good for your teeth, not bad for your brain
Many countries add fluoride to the drinking water in the belief this will improve dental health. As with anything else public health, some people think this is a grave mistake.…
PhD students aren’t what they used to be either
One very basic fact of humans is that ability to do anything varies. This is also true for ability to do cognitively demanding jobs of which the main requirement is…
New paper out: County-level USA: No Robust Relationship between Geoclimatic Variables and Cognitive Ability
This one came out in Februrary, so we are a bit behind, but that's because I wanted to time the blogpost with the video. Aaaand the video is online now.…
New video: Are There Complex Assortative Mating Patterns For Humans?
Forgot to blog this one earlier. It's a video walkthrough of the usual sorts, based on my paper in Mankind Quarterly back from March: Kirkegaard, E. O. W. (2021). Are…
East Asian ability tilt and ideographic written language
https://twitter.com/whyvert/status/1392623731835506691 I have not, but Lynn has noted that East Asians have a relative advantage in visual-spatial ability, and that's their written language, possibly some gene-culture co-evolution. One study shows…
John O’Sullivan’s First Law: All organizations that are not actually right-wing will over time become left-wing
Why this post? This law is falsely attributed to Robert Conquest 1000s of times, including by me. So we need some counter-attribution! There is this post on tracking down the…