Elon Musk: @Rainmaker1973 人类只占地球表面积的很小一部分——你可以在纽约市的一个楼层容纳整个地球人口（@waitbutwhy） waitbutwhy.com/2015/03/7-3-bi…

原推：@Rainmaker1973 Humanity takes up very little of Earth’s surface area – you can fit the entire population of Earth in New York City on one floor (@waitbutwhy)

waitbutwhy.com/2015/03/7-3-bi…
https://twitter.com/elonmusk/status/1621061554371436544