The Big Bang started as a singularity. That means small. All the matter in the universe was in a volume smaller than its own Schwarzchild radius. The universe was inside a black hole.

At present, the universe is big: bigger than its Schwarzchild radius. It got out of its own black hole which, they tell me, can’t be done.

How did this happen?

  • $\begingroup$ What have you found out in the intervening 46 years? $\endgroup$
    – Jim421616
    Nov 30 '21 at 18:50
  • 2
    $\begingroup$ That I'm a bear of very little brain. $\endgroup$
    – Woody
    Nov 30 '21 at 19:06
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  • $\begingroup$ Why do you think there was a black hole? And if there was, what makes you think we are now outside it? Both these assumptions should be seriously challenged. Also, space itself got bigger, which is very different to something getting bigger and escaping a black hole. $\endgroup$
    – Rory Alsop
    Dec 7 '21 at 18:25
  • $\begingroup$ The Schwarzchild radius for the mass of the universe is roughly galactic in size. Initially, the radius of the universe was smaller than that. $\endgroup$
    – Woody
    Dec 7 '21 at 22:03

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