Naked Universe of Ana

What if we all came from a white hole?

Added 2025-05-21 09:24:24 +0000 UTC

Well… not literally. Or maybe, kinda?

Back in 1998, this guy Philip Gibbs threw out a wild idea: what if the Big Bang wasn’t just some spontaneous explosion, but actually... the exit of a white hole?
Like, somewhere out there, in another universe, something collapsed into a black hole, and our universe popped out the other side as a white hole.

Gibbs took Einstein’s field equations (well, more precisely, he used a solution for a spherically symmetric, inhomogeneous universe, sounds fancy, but really, it’s just a way to describe actual clumpy stuff like galaxies, voids, and us).
This solution allows for local variations in matter and expansion, which totally makes sense, since the universe isn’t perfectly smooth anyway.

And it turns out the math does allow for white holes to be more than just the time-reversed version of black holes. They could be real things, spewing out matter, space, time - the whole package.

What’s cool about his model?

You don’t need a singularity.
No terrifying “infinite density point” like in the standard Big Bang.
Instead, there’s a smooth transition: from one region of spacetime to another.

Kinda poetic, honestly.
Just one problem: we’ve never seen a white hole. Not yet.

arXiv:gr-qc/9803014