14 Comments
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Disgenik's avatar

The whole first paragraph is missing 0. Infront of every IQ decline number.

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Sebastian Jensen's avatar

XD

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Emil O. W. Kirkegaard's avatar

In weirdo academic writing rules, they tell you to omit leading 0's when the number is a [-1, 1] or [0, 1] bounded value. Leading people to be confused why correlations lack the zero, r squares lack the zero, but standardized betas have them, and so do Cohen's d (the autist reader will know that standardized betas, though on the same scale as correlations, can exceed the usual range due to influence of other variables). Presumably Seb got a little too used to this, and started omitting them in various other places. Or decided to save 1/1000 keystrokes on the keyboard by always omitting them when context makes it clear. We will maybe never know.

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Disgenik's avatar

Great post but could you factor in the effect of mutational load and negative flynn effect? Also sweden is a bad example as it doesn’t have 2012-14 immigration levels anymore and actively deports non white back. Becoming 0.4% more white each year

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Sebastian Jensen's avatar

A Finnish Compsci professor has already done the hard work - I don't want to spoil his work or do unnecessary labour.

I don't think the negative flynn effects are (generally) on intelligence, and mutational load's impact is too small to justify modeling.

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...'s avatar

Uhm what is the source for the Swedish demographic process?

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True European's avatar

The EU/NATO proxy war with Russia has already prevented the births of millions of potential children and opened up a whole new route for black and brown male immigration into every nook and cranny of Europe.

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Argos's avatar

Sweden has significantly reduced immigration to about mid 2000s levels. Whether that will last is of course another question.

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Anatoly Karlin's avatar

Immigration doesn't really matter - it doesn't reduce the absolute number of high IQ individuals in the world (and raises the average through accelerated Flynn).

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Sebastian Jensen's avatar

If the political system is ran well enough this is true, but unfortunately this is not the case in Europe/America, so immigration has unnecessary consequences on social welfare/crime. This may not be as big of a concern in the future with embryo selection/AI on the horizon.

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Applequist's avatar

Density depresses fertility in all mammal species including humans.

Even more so for more k selected, more intelligent people.

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Sabugosa's avatar

The decline in IQ of Brazil have nothing to do with migration, but the demographic changes I'm the country. More mix race and black having more children than whites.

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Mar 26, 2024
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