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[–] MichaelCaine [S] ago 

So the writer picked one to focus on? He wasn't writing a compendium of disasters.

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[–] Goater ago 

Yes, but the need for colonization remains the same regardless of the source of disaster.

face of catastrophes like climate change, asteroid strikes, epidemics and overpopulation.

The author named a few, not just one, do you believe he presented a compelling argument that humans should not expand en masse into the solar system to ensure survival?