Our universe has just the right weight (mass) and size (observable) to match those of an equally heavy black hole and its Schwarzschild radius if we were inside of that.
Another interesting fact is that apart from some rounding errors our universe is perfectly symmetric in terms of mass, size, time when using Planch units.
Basically, Mass = Size = Age. Perfect hypersphere!
Thus density and temperature are equally neat and regular. Even ? and Hubble's constant seem to be perfectly calibrated. But there's more:
>G ? 1 / tGravity is inversely proportional to age of the universe
>M ? t2Mass is proportional to age squared!
>10^120discrepancy between the observed value of the cosmological constant and a naive estimate based on Quantum Field Theory and the Planck energy.
>8×10^120ratio of the mass-energy in the observable universe to the energy of a photon with a wavelength the size of the observable universe.
ratio of the theoretical and observational estimates of the energy density of the vacuum
ratio with the sum of elementary events or bits of information in the universe
All that is what you'd expect from a black hole, too!
>http://www.jgiesen.de/astro/stars/diracnumber.htmAlso, technically we're not inside a black hole, but outside a white hole, although there might might not actually be much of a difference or any at all, but that's very speculative. But all in all, this has been known for 80 years or so. It's not even all that controversial, even if some brainlets keep saying it's impossible.