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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 d
by michaelmcmillan 7y ago
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.
- kazinator 7y agoThat's along the lines of hypotheses like lung cancer being the common cause behind smoking and yellowed fingertips.
- michaelmcmillan 7y agoNo, not really.
- delecti 7y agoOr perhaps even more likely, that both are caused by things like good nutrition.
- bjelkeman-again 7y agoI don’t follow. Good nutrition doesn’t lead to poor fitness afaik.
- nicoburns 7y agoThe parent is possibly commenting on how nutrition standards in western countries have (arguably) declined recently.
- StillBored 7y agoOr even that there is a 3rd confounding factor.. say amount of sleep...