hal@rain.org wrote:
> Wei Dai, <weidai@eskimo.com>, writes:
> > I don't understand this either. How can there be a infinity of points at
> > one Planck time after the Big Bang at the center of mass of the universe?
>
> I don't think the universe has a center of mass in most models. The
> homogeneity of the universe is a fundamental assumption. A homogeneous
> universe may be spatially closed, like the surface of a hypersphere,
> and have a finite size. Or it may be spatially open, like a plane,
> and have an infinite size. But in neither case is there a center of mass.
>
There does not need to be a center of mass for there to be a origination point. Seeing as how current models of expansion correctly develop the sort of 'bubbly' type of dispersion we observe today, which is not possible in the type of homogenous sublimation that the pro-infinity-spacers claim, I put more credence in the expansion model.
Mike Lorrey