James,
I understand the all too human tendency to concoct explanations out of limited information and then try to fit all subsequent information into that framework, until it eventually breaks down and a new framework starts. Punctuated equilibrium, as applied to the growth of knowledge.
Infinity is not a popular concept, because it reduces all premises to white noise, so being able to frame reality, both spatially and temporally, is a strong impulse. I tend to prefer horizon lines as frames though. There are quite a few aspects to this though, from monolithic, object oriented belief systems in the west, to it being originally proposed by LeMaitre in support of his theory of the universe as a primordial atom. I've been carrying on a bit of this conversation with Jason in another thread. To which I made the point;
"Einstein argued the contraction of mass points under the influence of gravity is a collapse of space. To balance this effect, so the universe doesn't contract to a point, he added the cosmological constant. While this was rejected when other galaxies were discovered to be redshifted, it has been resurrected by redshift not matching basic Big Bang theory. So we say the galaxies are moving apart because the space inbetween them is expanding. Yet it seems to be forgotten that galaxies are actually contracting space and according to both theory and measurement by COBE and WMAP that these are closely balanced, resulting in overall flat space.
Yet because it is now a given that the universe began at a primordial point and expanded out since, there is no consideration of how these matching effects of expansion and contraction might most effectively fit in a larger cycle.
With all the attention given to symmetries, you would think this most obvious and evident relationship would get some consideration, but not if it conflicts with any ideas careers are built on."
I just think there are far too many open questions for cosmology to be as settled as it seems to be and think it will break back open.