Industry

Had always heard that the “replacement level” total fertility rate is 2.1 children per woman, but didn’t realize this was the reason:

Had always heard that the “replacement level” total fertility rate is 2.1 children per woman, but didn’t realize this was the reason: Let me lay out the unpleasant arithmetic of the replacement rate,

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industryelon-musk--x

Had always heard that the “replacement level” total fertility rate is 2.1 children per woman, but didn’t realize this was the reason: Let me lay out the unpleasant arithmetic of the replacement rate, and why a modern society finds it so hard to reach. A population of 100 women in an advanced economy needs 210 children to replace itself. Why? Absent sex-selective practices, roughly 105 boys are born for every 10…

Source: Elon Musk (X) | 2026-05-19

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