A conversation no one wanted has broken out on the internet’s most insufferable website after the world’s richest man said he was “worried about population collapse,” adding, without explanation, that “UN projections are utter nonsense.” Elon Musk, who runs a car company and a rocket company but has increasingly been shouting that humanity is doomed because people are not having enough babies to necessitate a life to Mars, which—do I have this correct?—is something Musk has convinced a significant portion of the domestic population we need. (Earth, famously, is a fine place to live.) Since everything Musk tweets ... (full story)