Why isn't the universe a big black hole?

ncarron

pervect, thanks for your reply. The Baez site and your further explanation have been most helpful.

GeorgeDishman

Possibly, but you will find it commonly discussed regarding Penrose Diagrams, for example:

http://jila.colorado.edu/~ajsh/insidebh/penrose.html

Andrew Hamilton is well known in the field:

http://casa.colorado.edu/~ajsh/

Alex1998

as pointed out by mark M, the universe has no boundary edge, or centre. the centre of the universe is analagous to the centre of the surface of a sphere. also, it doesn't have an edge, because if you walk around a sphere (say, the earth), you could do so infinitely.

I have made a model which is called "The Pebble and the Pond". this model explains that the big bang is a pebble being thrown in a pond, this creates a circular shockwave, this shockwave is 3 dimensional space, and the movement over the water is the passing of time. this means that in the beginning of the universe, the radius over the time dimension was very small, so in 4D it has an edge, but in 3D, it doesn't.

I also talk about quantum dimensions in my youtube videos, there I say that all those rolled up quantum dimensions, are the same as the 3D space, but 3D space is just an inflated roll, or a very big roll, this is showed in the model of the pebble and the pond. This is the same with when the universe started, it was very small, but it is actually the same as when it is very big, so if the universe was a black hole when it started, it will still be one.

the only question is, where is the black hole, because there is no centre of the universe. maybe the big bang is the opposite concept of a black hole, because a black hole sucks up matter, and the big bang created matter. then it would sit in the centre of the 4D universe, and the black hole is the big bang.


if you are interested in my YouTube videos, visit my channel "Fathom the Universe".

Drakkith

Alex, I was impressed by your video on dimensions, especially given the fact that you are 13!

Just so you are aware, your description of the "Pebble and the Pond" makes much more sense in your video than it does in your post, and saying that you have created a "Model" could mean to many that you have developed your own personal theory, which would be against PF posting rules. I would suggest labeling it as an analogy instead of a model.

Alex1998

ok, thanks for pointing that out, you are right..it is indeed an analogy I used to explain the current big bang theory.. I find it useful to scale down hyper-dimensional space to two or three dimensional models for clarification.