all good points, very interesting chaps.
If I can go back a point, i think the idea is that E=mc2 constraining the speed of the expansion is fine for our space-time as we know it, but, with the universe expanding, I would assume that it would be expanding into SOMETHING. That "something" we don't understand in the least and probably not meant to (yet). So we don't really know what rules govern the speeds in that place for lack of a better term. On the other hand, there must be a tremendous amount of energy involved in order to make the universe expand, in the right conditions, this may be allowing left-over energy to cross to matter, accelerating expansion, or at least allowing for the basic builing blocks to fill the void, a self sustaining cosmos yes/no?
Maybe a bit far fetched but i'm willing to entertain it for arguments sake.
