You mention string theory, as if you're familiar with it, and then use 'dimensions' in a manner utterly different to how they (ie string theorists) would. You use it in the way that sci-fi shows do, that 'another dimension' is another universe like ours, 'parallel' in the sense it has had a parallel history to ours but something's different.
That isn't how 'extra dimensions' are used in string theory, they are different directions to move. They are extra ups and downs, lefts and rights but in general can only be detected on very very small scales. In string theory it's possible to construct things which do look a lot like the sci-fi notion of extra dimensions but by their very nature (parallel 3-branes) they wouldn't 'occupy the same space', they are at different points in space-time.
Well string theory is still ongoing, incomplete, untested, and very complicated. I don't understand all of it, and I have dabbed with other multi dimensional stuff as well. String theory doesn't know yet, and has many possible explainations still open. I think I used string theory losely because it was string theory that helped me explore many possibilities, but some of my ideas come from various different opinions, and not just from this complicated theory.
And to be honest, after checking some stuff out, my original ideas do already need modified. That's why I presented this:
A more complete possibility,
Imagine a ball. Now imagine the ball is growing. The ball also has many layers. Each layer is it's own universe with it's own dimensions.
All the black holes throught the entire ball could be sucking as much into the core of the ball as they can. The denser the core gets, the more vulnerable the inner layers would become (the core might splash some dense 'singularity' on other layers once it becomes too dense).
Also the surface of our ball could be vulnerable to unknown outside forces.
There could be many balls of many growing universes!
Our universe would be just one of many layers.
Each black hole would be a gateway through other layers, but with so much force, that it's a gateway we can not travel through, .
I would assume each layer would have it's own physical properties, so our universes physics might not be the same as another universes physics. There also could be many different 'balls of universes' all having different physical properties and all having multiple layers of various different amounts of those properties. So no, I wouldn't think multiple dimensions would be the same as any sci-fi has shown me. When I think how small our universe could be when compared to everything, I realize why we know so little
. We don't even understand our layer yet, and the many layers of many different masses could be mind boggling!
This version doesn't matter on what type of a black hole it is, and after seeing a dormant black hole eat a star on the Nasa site, I needed to make some changes.
Again, thnx wave, I need you beside me when I start posting, lol. I get excited looking at possibilities, and I do sometimes jump the gun
. I am however very good at modifying ideas to better fit, when I feel I need to.