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What mundane things excite you? (lemmy.today)
submitted 7 months ago by to c/asklemmy@lemmy.world
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[–] 11 points 7 months ago* (3 children)

What's even crazier to me is that the universe can potentially last trillions of years before its heat death, so it's still very young, relatively speaking. And eventually everything will be so far apart that future beings won't even be able to know that other planets exist in the universe. We just got here early enough to find out.

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  • [–] 4 points 7 months ago* (last edited 7 months ago)

    Perhaps a billion years ago the universe was compact enough that beings in various planets evolved enough to develop travel to other planets. Then the Earth's surface was moltenized from a giant asteroid strike, and all traces of that civilization were vaporized. Then the universe expanded so we can't contact our old friends any more anyway.

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  • [–] 3 points 7 months ago (1 child)

    won't even be able to know that other planets exist in the universe

    I don't think gravity radically changes with the expansion of space, at least I haven't heard of that. So presumably local stuff will still be clumped together, including nearby galaxies. It's remote stuff that will drift away.

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