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Technological capability is more or less intellectual ability. IQ is substantially heritable. A child's IQ is (more or less) the average of his four grandparen
by mitochondrion 10y ago
Technological capability is more or less intellectual ability.
IQ is substantially heritable. A child's IQ is (more or less) the average of his four grandparents. The IQ of his four grandparents is largely the result of cognitive assortment within a breeding population with a certain mean IQ.
If a population's mean IQ is 70, the percentage of people with an IQ above 130 is 0 (out to four decimal places).
If 85, 0.1%.
If 100, 2.2%.
If 115, 15.9%.
The mean IQ of the white race is about 100. The mean IQ of SS Africans is about 70. The mean IQ of Arabs is about 85. The mean IQ of Chinese is 105 or so. The mean IQ of Ashkenazi Jews is 110-115, depending on how you measure it (they are a special case).
There are probably more people possessing IQs of 130 or above in Israel than in all of Africa.
The number 1.3 comes from a rough average of the fertility of the white nations and of the high-end Asian countries, namely Japan, Singapore, Hong Kong, and to a somewhat lesser extent mainland China.