If aliens existed we could readily see copious surface engineering in galaxies: "The germs of existence [on] earth if they could freely develop themselves would fill millions of worlds in the course of a few thousand years"(Malthus) https://waitbutwhy.com/2014/05/fermi-paradox.html … https://www.centauri-dreams.org/2012/01/23/rethinking-setis-targets/comment-page-1/ …
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Interesting. I see large scale nuclear war in the future as highly probable. Why do you think not? Isn't there a "Moore's Law of destructive technology"--cost of violence greatly decreasing year after year?
To make a difference in this discussion it has to be 99.9999999999% or more probable, give or take a few 9s.
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Got it
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Not really. It is enough to cover the bases not covered by natural hazards and other obstacles. My guess would be orders of magnitude smaller (logarithmically, ofc).
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That was my first thought too. That costs of destruction decreases at a much higher rate then protection. But you mean that other presumed societies wouldn't have that type of progress or maybe wouldn't fight?
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