Did A Four Dimensional Black Hole Birth Our Universe?

Yeah, that's our universe there in the wisps.

Now here's a interesting notion. The current explanation for the existence of our universe is the Big Bang theory, that everything spewed out of an infinitely hot and dense singularity in space. What if that's not the case? For one, it is difficult to explain why our universe is such a uniform temperature, because even given tens of billions of years, that's still not enough time for that to occur.

“For all physicists know, dragons could have come flying out of the singularity,” says Niayesh Afshordi,who is an astrophysicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada.

Afsordi and his colleagues have proposed that our three dimensional universe is the result of a hypershere, the event horizon or brane, of a four dimensional black hole and that we detect the brane’s growth as cosmic expansion.

There are still some problems with his theory, but Afsordi is currently refining his model. Here's a link to the Nature article for more details.