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American IQ scores have rapidly dropped, proving the 'Reverse Flynn effect'

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256 points hirundo | 1 comments | 10 Apr 23 13:00 UTC | HN request time: 0.324s | source
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globalreset ◴[10 Apr 23 16:49 UTC] No.35514334[source]▶
Honest question that keeps bothering me.

In the absence of reasonably strong natural selection pressure to select for IQ, how could IQ not be falling over time?

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Havoc ◴[10 Apr 23 16:53 UTC] No.35514381[source]▶
Why would it fall? Steady seems just as fair an expectation in absence of pressure either way
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1. walkhour ◴[11 Apr 23 12:20 UTC] No.35524128[source]▶
Same reason animals living in darkness lose their sight. There's a cost to keeping the hardware, and no rewards.