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Wandering Adventure Party

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  3. Distorted sound of the early universe suggests we are living in a giant void

Distorted sound of the early universe suggests we are living in a giant void

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    coolkat@slrpnk.netC This user is from outside of this forum
    coolkat@slrpnk.netC This user is from outside of this forum
    coolkat@slrpnk.net
    wrote last edited by
    #6

    No dark forest yaaaay

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      drspod@lemmy.ml
      wrote last edited by
      #7

      Our region is dark low-energy and dark doesn’t matter.

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      • coolkat@slrpnk.netC coolkat@slrpnk.net

        No dark forest yaaaay

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        eleitl@lemmy.zip
        wrote last edited by eleitl@lemmy.zip
        #8

        Dark Forest is not self consistent. Ability to travel implies nanotechnology which allows metabolizing any resource which deterministically leads to expansion which leads to self-selection for fastest expanders which soon means relativistic expansion which is hard to observe since observation window is short while pre-expansive observers are extinguished. Alernative is that nucleation density is very low and/or (reaching the stage of) travel and expansion is impossible. This is consistent with what we see, so Occam’s razor cuts Dark Forest.

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        • E eleitl@lemmy.zip

          Dark Forest is not self consistent. Ability to travel implies nanotechnology which allows metabolizing any resource which deterministically leads to expansion which leads to self-selection for fastest expanders which soon means relativistic expansion which is hard to observe since observation window is short while pre-expansive observers are extinguished. Alernative is that nucleation density is very low and/or (reaching the stage of) travel and expansion is impossible. This is consistent with what we see, so Occam’s razor cuts Dark Forest.

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          acockworkorange@mander.xyz
          wrote last edited by
          #9

          Those are definitely words.

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          • E eleitl@lemmy.zip

            Dark Forest is not self consistent. Ability to travel implies nanotechnology which allows metabolizing any resource which deterministically leads to expansion which leads to self-selection for fastest expanders which soon means relativistic expansion which is hard to observe since observation window is short while pre-expansive observers are extinguished. Alernative is that nucleation density is very low and/or (reaching the stage of) travel and expansion is impossible. This is consistent with what we see, so Occam’s razor cuts Dark Forest.

            M This user is from outside of this forum
            M This user is from outside of this forum
            mic_check_one_two@lemmy.dbzer0.com
            wrote last edited by
            #10

            This reads like a manifesto.

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            • E eleitl@lemmy.zip

              Dark Forest is not self consistent. Ability to travel implies nanotechnology which allows metabolizing any resource which deterministically leads to expansion which leads to self-selection for fastest expanders which soon means relativistic expansion which is hard to observe since observation window is short while pre-expansive observers are extinguished. Alernative is that nucleation density is very low and/or (reaching the stage of) travel and expansion is impossible. This is consistent with what we see, so Occam’s razor cuts Dark Forest.

              T This user is from outside of this forum
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              tauzero@mander.xyz
              wrote last edited by
              #11

              Robin Hanson is in the house!

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                bemorecareful@lemmy.world
                wrote last edited by
                #12

                That lines up with my existential dread.

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                • E eleitl@lemmy.zip

                  Dark Forest is not self consistent. Ability to travel implies nanotechnology which allows metabolizing any resource which deterministically leads to expansion which leads to self-selection for fastest expanders which soon means relativistic expansion which is hard to observe since observation window is short while pre-expansive observers are extinguished. Alernative is that nucleation density is very low and/or (reaching the stage of) travel and expansion is impossible. This is consistent with what we see, so Occam’s razor cuts Dark Forest.

                  C This user is from outside of this forum
                  C This user is from outside of this forum
                  canadaplus@lemmy.sdf.org
                  wrote last edited by
                  #13

                  Ability to travel implies nanotechnology which allows metabolizing any resource which deterministically leads to expansion

                  Both of those aren’t really supported. Maybe all matter will be useful, or maybe rare elements will still be preferred, and what exactly nanotechnology will look like is up in the air (it could be that life has explored the space of possible nanomechanisms pretty well already). Similarly, it’s totally plausible an advanced species could stay in place. I actually worry we won’t have the attention span to fund slow interstellar expansion.

                  I’d agree there isn’t really a rational reason to cross interstellar space just to be a dick. Irrational reasons are possible, but seem unlikely. The only way dark forest makes sense is if competition is an issue, and the nature of space warfare leaves a strong pressure to strike early.

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                  • coolkat@slrpnk.netC coolkat@slrpnk.net

                    No dark forest yaaaay

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                    canadaplus@lemmy.sdf.org
                    wrote last edited by
                    #14

                    We’re still in a galaxy.

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                      canadaplus@lemmy.sdf.org
                      wrote last edited by canadaplus@lemmy.sdf.org
                      #15

                      It’s not really a smoking gun, but if their analysis is correct it’s highly suggestive, especially when alternatives to LambdaCDM still consistent with measurements have proven really hard for the theorists to make.

                      Edit: Although what does this say about the cosmic distance ladder?

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                        motoash@lemmy.world
                        wrote last edited by
                        #16

                        “Void” is much too dramatic of a word for science communication… 20% less dense than city population doesn’t even get you to suburban levels of density, let alone anything near “void”.

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