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Astronomy

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  • $\begingroup$ Thanks, black holes makes way more sense without a singularity. My favorite theory probably is that our universe was born as a glitch, a phase transition from another universe with different physics rules and it's still lingering within the fabric of our universe, like dark matter and dark energy. Black holes might just somehow open a gateway to that old universe. If the old universe would be 2 dimensional, than we would observe it as infinitely small and tense, just like a singularity. $\endgroup$
    – Ba-Lee
    Commented Jul 17, 2019 at 15:40
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    $\begingroup$ @Ba-Lee In that case, I think you'd enjoy reading Lee Smolin's The Life of the Cosmos. BTW, in pure GR you can't observe a BH singularity even if you're inside the event horizon: the singularity is always in the future of any observer. $\endgroup$
    – PM 2Ring
    Commented Jul 17, 2019 at 15:50
  • $\begingroup$ Thanks, I'll look into that. $\endgroup$
    – Ba-Lee
    Commented Jul 19, 2019 at 4:35
  • $\begingroup$ It is a very detailed and good answer and I'm very grateful that you put in the afford writing it, but as you said it yourself nobody really knows the answer. I'll except it out of gratitude, but would like to see more theories on this one. $\endgroup$
    – Ba-Lee
    Commented Jul 19, 2019 at 15:01
  • $\begingroup$ @Ba-Lee True, we don't know exactly what happens at the core, but as my last 2 paragraphs explain, that doesn't affect the mass and size of the black hole. The spacetime distortion near the black hole is fully determined by what happened outside the event horizon. From an outside observer's perspective, all events inside the event horizon are in the distant future (how far distant depends on what coordinates you want to use). $\endgroup$
    – PM 2Ring
    Commented Jul 19, 2019 at 17:31