Comment on After the new Kurzgesagt video about black holes...

Aremel@lemmy.world ⁨1⁩ ⁨month⁩ ago

• PunnyName@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Can you get your head around singularities? Because as much as I do understand, I still don’t understand them.

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  • Earflap@reddthat.com ⁨1⁩ ⁨month⁩ ago

    Its just a part in the equation where you’re dividing by zero, that’s all. It means our theories are incomplete.

    The gravastar theory is notable (IMO) because it does away with the singularity. Although, it seems like this theory is borderline unfalsifiable, since anyway you could detect a gravastar would also be insistinguishable from a black hole.

    Personally, I am of the (completely unsubstantiated) opinion that black holes create universes (somehow) because it is a simple, succinct answer to many questions. So, any theory that takes that seriously would be worth further research, imo. But until there is some kind of observational evidence, I think this is just relegated to the realm of “that’s a neat thing that math can do”.

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    • Valmond@lemmy.world ⁨1⁩ ⁨month⁩ ago

      That’s interesting, I’m debunking bogus claims of my lil bro from time to time and when pushed it usually ends up in some sort of division by zero (all is everything and everything is all sort of idiocy), does this thing you describe where if you divide by zero your theory is incomplete have a name? Any pointer warmly welcomed!

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    • PunnyName@lemmy.world ⁨1⁩ ⁨month⁩ ago

      This Veritasium video could help to explain some things (it still boggles my brain): youtu.be/6akmv1bsz1M

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      • Earflap@reddthat.com ⁨1⁩ ⁨month⁩ ago

        Yes, this is an excellent video! Thanks for finding this, I couldn’t remember which video I saw this in when I was typing my reply.

        If this is something that interests anyone reading this thread, PBS Space Time has a number of excellent videos on the topic of black holes and their theoretical alternatives.

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  • niktemadur@lemmy.world ⁨1⁩ ⁨month⁩ ago

    I’m gonna rephrase that for both of us, I think (hope):
    We understand better what it is we don’t understand about them.

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