Goodbye Big Bang, hello black hole? A new theory of the universe's creation

[Jim__]

From phys.org:

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Could the famed "Big Bang" theory need a revision? A group of theoretical physicists suppose the birth of the universe could have happened after a four-dimensional star collapsed into a black hole and ejected debris.

Before getting into their findings, let's just preface this by saying nobody knows anything for sure. Humans obviously weren't around at the time the universe began. The standard theory is that the universe grew from an infinitely dense point or singularity, but who knows what was there before?

"For all physicists know, dragons could have come flying out of the singularity," stated Niayesh Afshordi, an astrophysicist with the Perimeter Institute for Theoretical Physics in Canada who co-authored the new study.

So what are the limitations of the Big Bang theory? The singularity is one of them. Also, it's hard to predict why it would have produced a universe that has an almost uniform temperature, because the age of our universe (about 13.8 billion years) does not give enough time—as far as we can tell—to reach a temperature equilibrium.

more ...

[GeorgeGist]

1. As I learned yesterday ...

time and space are an illusion of the Amplituhedron.

[Fantastic Anarchist]

2. Interesting, no doubt ...

... but this idea has been around in one form or another for a long time. It also requires a lot of assumptions, and doesn't really answer a lot of questions.

That said, I'm no physicist, so anything I read is ultra cool to me.

[defacto7]

3. I love phys.org

I've been reading that site everyday for a couple of years. Mostly great info but occasionally some not so apt writers who try to translate the science journals and publications. This particular article is fascinating but it's not new science. The mistake of the writer is calling it a theory instead of a hypothetical model or hypothesis. But so what. It's great to be reading what's being hashed out in the field.

[tridim]

4. It's by far my favorite "bang" theory.

I love that it mimics biology and deals with child and parent universes. I guess it just seems most correct.

[WovenGems]

5. E = MC2

Thus that big burst of energy came from matter. An exploding Black Hole would do the trick. And how much matter can one feed to a Black Hole before it explodes? My guess, a whole universe.