I see this argument pop up a lot for the guys who argue that we need to put more money into space exploration because it's too dangerous to put all your eggs in one planet. Now I'm not against space exploration, but as far as I know unless the planet Earth ceased to exist, virtually any kind of disaster whether manmade or natural would still make Earth a far more habitable place than any planets/moons we know of. I mean even in the most inhospitable place we at least we still have oxygen, water, and normal gravity.
I see a lot of smart guys, even Stephen Hawkins, use this argument and I think it's just fear-mongering. Even if an asteroid wiped out 99% of life on Earth tomorrow, the 1% that survived still will have far easier time continuing to survive versus some martian or lunar outpost that is most likely not even self-sustainable.
I see a lot of smart guys, even Stephen Hawkins, use this argument and I think it's just fear-mongering. Even if an asteroid wiped out 99% of life on Earth tomorrow, the 1% that survived still will have far easier time continuing to survive versus some martian or lunar outpost that is most likely not even self-sustainable.