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29 Apr, 11 tweets, 4 min read
The Idiocy of the Average - and Why It Matters unz.com/akarlin/stupid… Image
The gloomy prospect of lower IQs for civilization. Flynn 1980 p. 28.

Source: arthurjensen.net/wp-content/upl… Image
Cognitive ability of top 5% more important for country wealth than mean cognitive ability: researchgate.net/publication/51…
When Lightning Strikes Twice: Profoundly
Gifted, Profoundly Accomplished: "In a sample of 259 extremely high IQ adolescents (0.01%), 37% had doctorates, 9% had patents, 39% had peer-reviewed publications, along with various other accomplishments."

Is the Association between General Cognitive Ability and Violent Crime Caused by Family-Level Confounders?
"In a Representative [USA] Sample...intelligence contributes 48–90 times more than grit to educational success and 13 times more to job-market success...previous studies used nonrepresentative samples that were range restricted on intelligence" journals.sagepub.com/doi/10.1177/19…
"A 1 point increase in a nation’s average IQ is associated with a persistent 0.11% annual increase in GDP per capita." link.springer.com/article/10.100…
"Higher IQ gives hugely increasing benefits, all the way up the scale."
"Again we have verification that a nation's intelligence matters."

Meta-Analysis: IQ is a *much* better predictor of job performance than Emotional Intelligence or the Big Five personality traits onlinelibrary.wiley.com/doi/10.1002/jo… Image
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More from @XiXiDu

Alexander Kruel Profile picture
28 Aug
What's the most counterintuitive fact of all of mathematics, computer science, and physics?
Here are some suggestions I received. Let's start with some of the classics:

Monty Hall problem en.wikipedia.org/wiki/Monty_Hal…

Unexpected hanging paradox en.wikipedia.org/wiki/Unexpecte…

A shape with a finite volume but an infinite surface area (Gabriel’s Horn) en.wikipedia.org/wiki/Gabriel%2…
Suppose you tie a rope tightly around the Earth's equator. You add an extra 3 feet to the length. All around the Earth the rope is raised up uniformly as high as is possible to make it tight again. How high is that? puzzles.nigelcoldwell.co.uk/fortyone.htm
Read 35 tweets
Alexander Kruel Profile picture
5 Aug
The Beirut blast is estimated to have been equivalent to a few hundred tons of TNT. Hundreds of people are still missing and at least 300,000 are displaced. The Tsar Bomba, a Soviet hydrogen bomb, had a blast yield of 50 million tons of TNT.
LIGO [The Laser Interferometer Gravitational-Wave Observatory] ligo.caltech.edu/page/facts
The loudest sound in the world was so loud that it ruptured eardrums of people 40 miles away, travelled around the world four times, and was clearly heard 3,000 miles away. kottke.org/14/10/the-worl…
Read 12 tweets
Alexander Kruel Profile picture
12 Jun
The course of history now critically depends on whether GPT-4 and GPT-5 will show diminishing performance returns.
600 billion parameters: arxiv.org/abs/2006.16668

"We demonstrate that such a giant model can efficiently be trained on 2048 TPU v3 accelerators in 4 days to achieve far superior quality for translation from 100 languages to English compared to the prior art."
reddit.com/r/MachineLearn… Image
Read 14 tweets
Alexander Kruel Profile picture
28 May
That the political left is only interested in gagging their ideological enemies can be inferred from their contradictory stances on regulating opinion-forming monopolies.
They are selectively libertarian and argue that private companies can exercise property rights when conservatives bemoan discrimination. Yet when Zuckerberg says that Facebook shouldn’t be the arbiter of truth, the tone suddenly becomes much harsher towards these behemoths.
We indeed need to regulate these platforms but to ensure a level playing field, to protect free speech and the sovereignty of the law. We need to extend net neutrality to encompass social networks so that they must treat all expressions of opinion equally.
Read 8 tweets
Alexander Kruel Profile picture
12 Apr
When you hear "privilege" or "discrimination" always think "genetic confounding" (psyarxiv.com/j5x7g/) or risk wasting billions on futile efforts (washingtonpost.com/news/answer-sh…). Image
80% of today's wealthy Chinese are descendants of pre-communism elites. ft.com/content/a25795… Image
Land lottery in Georgia (1822). Family lines of men who won land were no better off than those of non-winners. academic.oup.com/qje/article-ab…
Read 14 tweets
Alexander Kruel Profile picture
3 Oct 19
Admixture-enabled selection for rapid adaptive evolution in the Americas biorxiv.org/content/10.110…

"...admixture serves as a fundamental mechanism that drives rapid adaptive evolution in human populations."
‘Black Donors Needed:’ People Call This Ad ‘Racist’, Receive A Calm Answer About Why They’re Wrong boredpanda.com/people-respond…
Huge genomic changes an afterglow of archaic human pairings cosmosmagazine.com/biology/huge-g…

"People living on the islands of Melanesia have inherited large slabs of DNA from Neanderthals and Denisovans, according to a new analysis." (via @Biorealism)
Read 10 tweets

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