GeneralDadmission

I will be specific rather than analogous in future. The description you have quoted is analogous where as the content of the paper addresses specifics. A more accurate definition of the content is that space is moving in opposite directions with a common centre.

If you had read it accurately it doesn't claim that. The paper refers to gravitational lensing. I have only confused the question by analogising it against white holes.

Possibly referencing the content of the paper in discussion of the subject would make greater progress than assessing imperfect analogies I have constructed in the attempt to illustrate what I understand of the content. I will address any further questions I find as such.

That also is relative. What was the size of a void during the expansion epoch? If heat death is the fate of the universe what will the size of these voids be relative to at that time? I have approached from my own line of contemplation which only draws on the content of the paper. I will have to digest the content of the paper to a fuller extent to provide greater clarification. This paper provides context but I will attempt to locate an entry by Prof. Barbours associates and address questions in reference to material contained in these. That may be more direct than attempting to analyse voids against vague suppsoitions. http://arxiv.org/html/physics/9812021 I wasn't stating a void is a white hole. Only that it might be the closest physics provides to such a state.

The paper allows that time symmetry is relative to the origin of a particles momentum. If the voids we observe can be considered points that our matter is gravitating away from they would also represent positions that antimatter is gravitating toward. Ones origin becomes the other's destination and vice versa.

The conditions measurable in voids of minimal radiation and gravitation may be the provision of gravitational lensing.

I believe the premise is that particle pair production during BB expansion results in (possibly semi)permanently seperated spaces. Subsequent particle pair production within either space is subject to annihilation but the original constituents are unable to act on each other being seperated by momentum in the form of spatial expansion.

Professor Barbour of Oxford supports the theory that an antimatter universe is travelling away from ours in time. I think that should be phrased as 'away from each others space' because time is a construction of momentum. For me this provides a model in which antimatter filaments are intertwined with our galactic filaments but cannot be directly observed because of the uniform acceleration between the two. I would illustrate what I would consider dilation disparity between the two by proposing that the conditions measured in the great voids in the interstellar medium may be the closest to a white hole that the relativity of a duel matter/antimatter universe would allow. If an antimatter universe is travelling in precisely the opposite direction to ours these void areas might be considered space that an antimatter galaxy is travelling most directly toward. Does anyone here have insight into the plausibility of a matter/antimatter universe?

Why would expansion not be considered an aspect of gravitation? Could the BB not have been considered to simply regulate observation of expansion to the point we can only observe expansion along our universes trajectory?