Bachman Profile picture
May 11, 2021 8 tweets 3 min read Read on X
There are many types of personality, but only one type of intelligence

What would it be like to live in a world reversed: a single personality, but many intelligences?
I still see modish pieces about "fluid" vs "crystallized" intelligence. Apparently fluid intelligence is just g in disguise, and crystallized is just picked up by culture loaded tests?
Carl Friedrich Gout?
Like so much suppressed folk knowledge, "Nerdy Four Eyes" is accurate:
Head size appears causally related to intelligence, but the link between height and intelligence probably just reflects assortative mating; both traits are highly sought in mates
Intelligence appears to cause happiness, and much more so than socioeconomic status does

Yet we spend trillions on demonstrably useless "anti poverty" programs. If we eliminated taxes, more parents could afford embryo selection for smarter kids.
Libet's experimental "disproofs" of free will are open to all kinds of criticism, but this experiment from Jensen seems more watertight:
One of the findings that surprised me most from the field of intelligence research is that reaction times are a good reflection of cognitive ability.

And it's hard to see how culture could affect reaction times. It suggests IQ differences reflect neurological differences.

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More from @ElonBachman

May 18
England's eugenic rise began as early as the 1300s
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The Medieval English were already individualistic Image
"In almost all the great peasant nations, marriage for women is soon after puberty, in the late teens. This congrats strongly with the late age at marriage, twenty-five or later, found in parts of northwestern Europe from at least the 16th century" Image
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May 17
The 1976 Soweto student uprising is mythologized as an early noble skirmish in the fight against Apartheid. But the commencing act of violence was a student stabbing a female teacher with a screwdriver because he didn't want to learn Afrikaans. Image
Much stoning of police and police vehicles. Much revolutionary not doing of homework. Image
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May 5
Belloc argued that where you have training and social cohesion, infantry beats cavalry. But when you lose cohesion, better to have cavalry. Image
A Quora poster had a good line: "Pikes didn't make the Swiss famous; the Swiss made pikes famous"
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Apr 30
Was the French Revolution a race war, a slaughter of Nordics by Alpines?
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Madison Grant thought that stereoscopic vision evolved to allow accurate brachiation. Similar to @MarkChangizi's theory that it evolved to see through leaf clutter Image
The Yankee establishes the frontier, the Germanic develops it.

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Mar 15
Haitians disinterring and eating babies
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"Ask Haitians why they do not mend their streets and roads, they answer 'God spoilt them, and God will mend them'" Image
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Mar 5
Females outnumbering males three to one in a Congo village. Plausible? Image
Inordinate attention to hair Image
A man capsized at a Congo falls attempts to shake off the boy who clings to him, but the boy survives

Ralph Townsend related similar scenes from 1930s China Image
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