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Scientific Blackpill: Difference between revisions
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→Before 'enforced monogamy', women's effective population size was up to 17x larger than men's
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Karmin et al. (2015) | Karmin et al. (2015) analyzed the genetic diversity of exclusively male and female parts of the DNA (male Y chromosome and female mitochondrial DNA, mtDNA) to estimate effective population sizes of both sexes throughout human history. The analysis revealed the following: | ||
* 8-4 thousand years ago, around the time Agricultural Civilization began to emerge, women's effective population size grew substantially to around 17 times the size of men's. | * 8-4 thousand years ago, around the time Agricultural Civilization began to emerge, women's effective population size grew substantially to around 17 times the size of men's. | ||
* This disparity can possibly be explained by increasingly polygynous mating practices that resulted from increased wealth and wealth inequality between men. | * This disparity can possibly be explained by increasingly polygynous mating practices that resulted from increased wealth and wealth inequality between men. | ||
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* Societies that practice monogamy tend to show roughly equal ratios of male to female reproductive success, while societies that favor serial monogamy or polygyny tend to cause more variation in male reproductive success, while not affecting female success in the same way. | * Societies that practice monogamy tend to show roughly equal ratios of male to female reproductive success, while societies that favor serial monogamy or polygyny tend to cause more variation in male reproductive success, while not affecting female success in the same way. | ||
Note: This study was misquoted by Pacific Standard (psmag.com) | Note: This study was misquoted by Pacific Standard (psmag.com) to imply that ''17 women reproduced for every one man''. In truth, only the ''effective population size'' of women was 17 times as large as men's. The effective population size does not clearly distinguish parents and their offspring due to the similarity of their genes. A man with 20 children, each of which has 10 children in turn, would not contribute with 1 + 20 × 10 individuals to the effective population size, but considerably less than that. Anyhow, the result still points to substantial sex differences in variance of reproductive success. Reputed social psychology professor Roy Baumeister, estimated the sex ratio of historical reproductive success to be 2:1. Half the branches on a tree of ancestors represent males, but half of the males are repeats. | ||
<span style="font-size:125%">'''Quotes:'''</span> | <span style="font-size:125%">'''Quotes:'''</span> | ||