Elon Musk: @waitbutwhy 由文字发明定义的文明只有约 5500 年历史 en.m.wikipedia.org/wiki/History_o…

原推：@waitbutwhy Civilization, as defined by the invention of writing, is only ~5500 years old en.m.wikipedia.org/wiki/History_o…
https://twitter.com/elonmusk/status/1515386726818144264