Physics as a Strange Attractor

Almost every student who attends a decent high school will be exposed to Special Relativity. Their science/physics teacher may not really understand it very well, may do a terrible job trying to explain it. But the kid will have to read a textbook discussion and (in the internet age) can easily find more with a …

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Steve Pinker and Joe Rogan

I’ve just started watching this so I can’t give you an evaluation of the whole conversation. Looks promising — they jump right in on topics like sex differences, political correctness, internet flame wars, the Trump candidacy, social media, … (I’m skipping the Super Bowl, by the way. I stopped watching the NFL and NBA years …

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Low SES does not decrease heritability of cognitive ability (N=300k)

These researchers, from Stanford, Northwestern, and the University of Florida, analyze a large population of twins and siblings (~24k twins and ~300k children in total, born 1994-2002 in Florida). They find no evidence of SES (Socio-Economic Status) moderation of genetic influence on test scores (i.e., cognitive ability). The figure above shows the usual pattern of lower pairwise …

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Scientific Consensus on Cognitive Ability?

From the web site of the International Society for Intelligence Research (ISIR): a summary of the recent debate involving Charles Murray, Sam Harris, Richard Nisbett, Eric Turkheimer, Paige Harden, Razib Khan, Bo and Ben Winegard, Brian Boutwell, Todd Shackelford, Richard Haier, and a cast of thousands! ISIR is the main scientific society for researchers of …

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Comey under oath: no obstruction of justice

Almost everything we hear from the media these days is simply motivated reasoning — i.e., partisan nonsense. Wikipedia: …When people form and cling to false beliefs despite overwhelming evidence, the phenomenon is labeled “motivated reasoning”. In other words, “rather than search rationally for information that either confirms or disconfirms a particular belief, people actually seek out information …

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Neanderthals dumb?

This figure is from the Supplement (p.62) of a recent Nature paper describing a high quality genome sequence obtained from the toe of a female Neanderthal who lived in the Altai mountains in Siberia. Interestingly, copy number variation at 16p11.2 is one of the structural variants identified in a recent deCODE study as related to …

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Number sense and math ability

This is consistent with my experience as a parent and educator: my guess is that number sense is a cognitive module, at least somewhat distinct from general intelligence, and somewhat hardwired. Number sense in infancy predicts mathematical abilities in childhood (PNAS) Abstract: Human infants in the first year of life possess an intuitive sense of …

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