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michaelmcmillan
on May 22, 2019
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IQ rates are dropping in many developed countries
How do you know that the causality is flowing in that direction and not the other way? It could also be that we are getting physically worse because our IQ is declining.
delecti
on May 22, 2019
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Or perhaps even more likely, that both are caused by things like good nutrition.
bjelkeman-again
on May 22, 2019
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I don’t follow. Good nutrition doesn’t lead to poor fitness afaik.
nicoburns
on May 22, 2019
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The parent is possibly commenting on how nutrition standards in western countries have (arguably) declined recently.
StillBored
on May 22, 2019
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Or even that there is a 3rd confounding factor.. say amount of sleep...
kazinator
on May 22, 2019
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That's along the lines of hypotheses like lung cancer being the common cause behind smoking and yellowed fingertips.
michaelmcmillan
on May 23, 2019
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No, not really.
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