Elon Musk: 尽我所能帮助人口不足的危机。 崩溃的出生率是迄今为止文明面临的最大危险。

原推：Doing my best to help the underpopulation crisis.

A collapsing birth rate is the biggest danger civilization faces by far.
https://twitter.com/elonmusk/status/1545046146548019201