https://www.msn.com/en-us/news/tech...pc=U531&cvid=272cb184de9c48fbbd3b321120e37dacWe can reliably calculate that radius, the Schwarzschild radius, based on the equation Rg = 2GM/c2 written by German physicist Karl Schwarzschild. And insanely enough, if you gathered all the mass of our universe into a single bundle and plugged it into that equation, you'd get a radius that equals exactly the amount of the universe we can see.
Michio Kaku has often joked, "If you want to know what it looks like inside of a black hole, look around your room".
But is this true?!?! IF we plug the mass of the known universe into the calculation for the Schwarzschild Radius, we get what is observed? That would be mind-blowing if true!