Elon Musk: @teslaownersSV @RyanGirdusky @GoodPoliticGuy 韩国和香港正在经历最快的人口崩溃。请注意，每位女性 2.1 个孩子是替代率。

原推：@teslaownersSV @RyanGirdusky @GoodPoliticGuy South Korea and Hong Kong are experiencing the fastest population collapse. Note, 2.1 kids per woman is replacement rate.
https://twitter.com/elonmusk/status/1529196767786545152