[brindlejim]

I think that making humanity a multi-planetary species, by definition, derisks the possibility that humanity will die out, especially if the extra-terrestrial colonies are self-sufficient. I actually don't see how you can logically dispute that. I find Elon's drive to make us multi-planetary totally respectable, and a logical action based on the nuclear and climatic risks we face on Earth.

Making cars electric means that we could swap in an alternative form of fuel, like nuclear, without breaking an economy and society that depends on driving.

I think Musk has demonstrated mixed motives, and in that, he resembles most people. His political and geopolitical opinions are regrettable, and if we wants to operate a large social media platform and appease advertisers of many stripes, he should probably shut up. But I doubt he has the humility or self-awareness to do that.