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The increase in height observed over the past two centuries is mostly genetic? Would you mind providing a citation for that? Everything I've read attributes the
by ideonexus 10y ago
The increase in height observed over the past two centuries is mostly genetic? Would you mind providing a citation for that? Everything I've read attributes the recent increase in average height to environmental factors, such as improved nutrition and quality of life in the societies in which it is observed [1]. As with the increase in IQ, genes simply can't change that quickly to account for the change in height.
[1] https://ourworldindata.org/human-height/ https://ourworldindata.org/human-height/
- lmm 10y agoA quick search found http://www.scientificamerican.com/article/how-much-of-human-height/ http://www.scientificamerican.com/article/how-much-of-human-... - saying that height is 60-80% genetic (i.e. close to the 80% being claimed for IQ). My claim is not that the improvement is necessarily genetic - just that the improvement in height is comparable to the improvement in IQ. So there's no contradiction.