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![jacobin Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::170254080.png) Jacobin [@jacobin](/creator/twitter/jacobin) on x 374.8K followers
Created: 2025-07-25 22:30:00 UTC

Elon Musk–funded economists Dean Spears and Michael Geruso argue in a new book that falling fertility rates are a threat to the existence of human civilization itself.

Their wildly speculative arguments are less than convincing:

![](https://pbs.twimg.com/media/Gwu0fvVW8AESI7q.jpg)

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[Post Link](https://x.com/jacobin/status/1948873397574009285)