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by loup-vaillant
5340 days ago
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Just a precision. I see two questions of interest when talking about whether height and IQ come from genetic or environmental factors. The first question is, how much of the currently observed variability in height (and IQ) is explained by genetic factors and environmental factors respectively? Meaning, how much of a lottery genes actually are? The second question is, how could we take control of the variability? Meaning, how much could we deliberately influence height (and IQ) through genes and environment respectively? By itself, the first question is of high academic interest, and low practical interest. The second question is just the opposite. But more important, those two questions should be treated separately, so everyone knows what we are talking about. |
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