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gwern comments on Musk, Mars and x-risk - Less Wrong Discussion

10 Post author: Kawoomba 23 November 2012 08:32PM

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Comment author: gwern 26 November 2012 06:15:06PM 3 points [-]

Hm, so you're right: http://en.wikipedia.org/wiki/Near-Earth_supernova#Effects_on_Earth In that case, it doesn't sound like that much of a direct threat at all: we can use cheap underground or UV-glass-filtering greenhouses to grow our food. A disaster, but not really an existential threat.