Comment on well?

• Klear@lemmy.world ⁨2⁩ ⁨months⁩ ago

  Relevant xkcd

  And a relevant smbc for good measure.

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  • msage@programming.dev ⁨2⁩ ⁨months⁩ ago

    Your SMBC link doesn’t work for me, it just opens the index.

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    • Klear@lemmy.world ⁨2⁩ ⁨months⁩ ago

      Try now.

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  • abbadon420@sh.itjust.works ⁨2⁩ ⁨months⁩ ago

    Smbc is Saturday Morning Breakfast Cereal, but what does xkcd stand for?

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    • DaPorkchop_@lemmy.ml ⁨2⁩ ⁨months⁩ ago

      Xaturday Korning Creakfast Dereal

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      • idiomaddict@lemmy.world ⁨2⁩ ⁨months⁩ ago

        Xerry kible cellow dip

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    • Klear@lemmy.world ⁨2⁩ ⁨months⁩ ago

      It’s a random unique string, chosen to make the comic easily searchable.

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  • prole@lemmy.blahaj.zone ⁨2⁩ ⁨months⁩ ago

    Where’s PBF?

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• atomicbocks@sh.itjust.works ⁨2⁩ ⁨months⁩ ago

  On the contrary; while I have heard the explanation that the commenter you replied to has said I have also heard a slightly different theory:

  Our universe is the 3 dimensional event horizon of a 4th dimensional black hole. By extension we may find that black holes in our universe have similar funky 2 dimensional areas at their even horizons.

  I am sure clickbait articles are part of it but there also seems to be several actual theories surrounding the idea of the nature of our universe relating to black holes.

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  • beejboytyson@lemmy.world ⁨2⁩ ⁨months⁩ ago

    Our universe is 4 d not 3 d

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    • MotoAsh@lemmy.world ⁨2⁩ ⁨months⁩ ago

      3+1, not 4D (we cannot move freely in time). They’re referencing the holographic universe theory, or holographic principle. PBS Spacetime has a good episode on the holographic universe theory.

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      • TexasDrunk@lemmy.world ⁨2⁩ ⁨months⁩ ago

        YOU can’t move freely in time. Don’t speak for me.

        Ok, I can’t either. But still…

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      • beejboytyson@lemmy.world ⁨2⁩ ⁨months⁩ ago

        You move through time every second…

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    • vala@lemmy.world ⁨2⁩ ⁨months⁩ ago

      Nah, this universe is 3d.

      I’m assuming you are thinking that time is the 4th dimension and we have time here so we are 4d?

      Time may be the 4th dimension, but in our universe, time doesn’t actually behave like a proper dimension. For one thing, dimensions should be spatially perpendicular to each other and time is not. We also seem to only be able to move one way through time whereas we can move back and forth through the other 3 dimensions.

      Dimensions get weird and complicated. For the intents and purposes of this conversation it’s correct to say that the universe were experiencing now is 3 dimensional.

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      • beejboytyson@lemmy.world ⁨2⁩ ⁨months⁩ ago

        That’s actually a crazy take that time isn’t a dimension. We’ll if someone say the sky is purple who am I to argue?

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    • Cethin@lemmy.zip ⁨2⁩ ⁨months⁩ ago

      Three spacial dimensions, which is normally what people mean when they say that, unless they specify otherwise. For example, we call them 3D game engines, not 4D. Yes, there’s also a time dimension that is special. It cannot be moved through freely.

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      • beejboytyson@lemmy.world ⁨2⁩ ⁨months⁩ ago

        How not? Do you not save your progress? Do you not old up old files? Really think bud

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    • PleaseLetMeOut@lemmy.dbzer0.com ⁨2⁩ ⁨months⁩ ago

      Yes, but if you’re beyond the event horizon time becomes basically* irrelevant. You could literally turn around, look back out towards the rest of he universe, and watch all of time play out in the blink of an eye.

      You know that scene in Interstellar where they land on the planet for 5 minutes, but 20 years passes for everyone else due to the planet’s mass? It’s the same thing, but a billion-billion-billion times more severe.

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      • Cethin@lemmy.zip ⁨2⁩ ⁨months⁩ ago

        No, time does not become irrelevant. It’s perfectly normal for things inside the black hole. Here’s the space time diagram for our universe on the right, and a black hole at the top-left. The speed of light is a 45° angle to the top right, and the solid lines are event horizons. Notice the space-time diagram looks exactly the same on the other side of the horizon. To get back through though you’d have to travel faster than that 45° angle, which is impossible.

        Image

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    • webghost0101@sopuli.xyz ⁨2⁩ ⁨months⁩ ago

      Do you have any idea how little that narrows things down?

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