Uhh aliens would be inevitably universally omnicidal just in case some other aliens are omnicidal, shut up nerd

  • Soap_Owl [any]
    ·
    edit-2
    2 years ago

    Omisidal aliens but so bad at being omicidal they never accidentally omniside themselves.

    We are omnicidal and and there is like a 50-50 chance our species will last long enough to be noticeable on a geological timescale

      • happybadger [he/him]
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        edit-2
        2 years ago

        You'd also have geological strata of artificial particles like concrete/asphalt/polymers and ice core records of air pollutants.

          • happybadger [he/him]
            ·
            2 years ago

            Are the caps bound to totally melt or just the surface ice and glaciers? Permafrost is dummy thicc.

            • sooper_dooper_roofer [none/use name]
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              edit-2
              2 years ago

              Antarctica used to have palm trees at one point in history.

              It's possible that it was closer to the equator during this time, I haven't figured out where exactly its position would be. It's also possible that as you said, there was some ice in some spots. But being that

              1. the effects of ALREADY PRESENT CO2 haven't even manifested yet
              2. we are still adding more CO2 on top of that
              3. the amount of CO2 we're adding is increasing

              I feel like it's safer to say that Antarctica will eventually be almost ice-free.

              • happybadger [he/him]
                ·
                2 years ago

                Well that sucks. I was planning on moving there and becoming a desperate cannibal warlord.

      • culpritus [any]
        ·
        2 years ago

        distinctive isotopic signature

        the isotopes from nuclear testing has already been raised by geologists as the 'golden spike' of the anthropocene, I'm sure an interstellar species would be able to notice it already if they cared to look

    • Ithorian [comrade/them]
      ·
      2 years ago

      We may end up being a really thin layer but the huge amount of climate/environmental change that humanity has produced should be pretty fucking noticable.

      • Soap_Owl [any]
        ·
        2 years ago

        There was recently a paper put out. The silurian hypothesis. The earth is real good at forgetting. If the dinosaurs had tech of around ournlevel there is a good chance no evidence of it would survive till now

        • fox [comrade/them]
          hexagon
          ·
          2 years ago

          You'd think, but all the oil was still in the ground between then and today, so if they did have civilization it was not industrial, or they too would've chugged that energy dense slurp juice

          • Soap_Owl [any]
            ·
            2 years ago

            Was the oil in there then? I don't actually remember when it developed

            • fox [comrade/them]
              hexagon
              ·
              2 years ago

              Most oil available today formed from carbonaceous era biomatter that was buried or stored anoxically before cellulose digestion evolved, and 70% of reserves were available 252-66 million years ago. Dinosaur civilization would have had access to oil. If it did exist it wasn't industrial. Probably no settlements at all, since we'd be able to identify graveyards (if they buried their dead, which occurs in nature without the dedicated land lots) and midden heaps. Middens particularly would be perfect fossilization environments since they're typically anoxic and tend to become strata over time. We've left a bigger global impact in the strata than the K-T line that marks the sudden end of all dinosaur fossils.

              • Soap_Owl [any]
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                edit-2
                2 years ago

                I am deeply impressed somebody here had that on deck. I don't know if I agree with your claim about lack of settlements just based on the ammount of speculation we'd have to out in that one. The rest seems just spot on though.