Elon Musk: @andst7 重要。韩国目前正在追踪大约每一代人都会失去大约一半的人口。长寿命隐藏了问题的可怕性质。

原推：@andst7 Important. South Korea is currently tracking to lose about half its population roughly every generation. Long lifespan hides the dire nature of the problem.
https://twitter.com/elonmusk/status/1566822635056599043