Really now? All the evidence, eh?<quoted text>
Buck there is no assignable dimension to the unobservable.
That's exactly the same as looking at the surface of the water and then saying,
Its not deep here, without a single measurement. Theists are great with this logic though,
because they simply believe things without evidence.
In the case of the universe, all the evidence shows us its dimension is infinite.
Your belief is trumped in the face of general relativity and event horizons.
How did they come up with the BBT, then? Or things like laws of thermodynamics?
The stuff you have been presenting has certain logical processes that are quite likely, however, you are inserting too many vague unknowns and coming up with a false model you trapped yourself into worshipping.
You have to turn those into a technology that works like any applied science before it becomes real.