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this post was submitted on 06 Sep 2023
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Asklemmy
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I'm not sure that would be true for a civilisation with FTL technology.
Also, even if just 0.01% of planets are habtiable as is, that's millions of them that we have availible. So it might make much more sense to just move to a new planet as we fuck them up.
Habitability is about more than just gravity, atmosphere, etc.
Earth has a biosphere compatible with human life. If all technology disappeared overnight, humanity would survive.
There's also the issue of moving billions of people.
So are all minor problems compared to FTL technology. So you need to bring some plants, big deal. Also you don't NEED to move billions of people. Just make new ones when you get there.
I agree. Lot's of people would die, but humanity would indeed survive. We are pretty resilient and adaptable.
Aren't we talking about a scenario where anyone left behind will die? That's billions of people every time we hop planets. Am I missing something?
I think you severely underestimate the difficulty in establishing a biosphere. Could we grow crops? Yeah, sure, I guess. Hydroponics, if nothing else. It'd be a nearly completely barren world with just a few crop fields. How inspiring.
According to OPs rules, only Earth gets destoyed, planets we settle after that should be fine.
Well, yes at first it would be quite bleak.
Or course we could also just cheat and use our FTL tech to time travel. Find a suitable planet, drop a couple of plant seeds, come back a few million years later and see what stuck.