Our universe might be nothing more than the 3D event horizon of a 4D black hole

[qubit]

It's only a hypothesis of course, but a rather interesting one.

The idea is that black holes as we know them--3-D black holes, in our known universe--have as a boundary a 2-D membrane, which is called an "event horizon." But in the event of a 4-D black hole, the event horizon would be a 3-D event horizon--and according to models run by the team, a collapse of a 4-D star would spew material into the 3-D event horizon, slowly expanding over time. That event horizon could be, well, our universe.

Read the rest at Popular Science

 

[erocker]

It also may be nothing more than a 4D event horizon of a 5D black hole. That 5D black hole may be in the center of a speck of dust on the pant-leg of an multidimensional insect named Carl.

However...

I'm not so sure "black holes" are inter-dimensional. I've recently read this: http://www.eso.org/public/unitedkingdom/news/eso1344/

"A powerful jet springing from the black hole"

Perhaps black holes are nothing but large galactic blenders that chews stuff up and pukes out atoms.

 

[Ikaruga]

It's a(n interesting) subject which comes up quite frequently on Astronomy related forums, but unfortunately, there are just too many unknown variables to verify such theory with a our current understanding of the Universe.

 

[slightlystoopid]

To be honest, we could speculate for the next hundred years and not know the truth.