To add to the OP, how is it that we have a beginning of time? Surely something existed before all of this happened? Because even if there was NOTHING, it still existed before the existence of something. That brings me to the paradoxical conclusion that our environments has already existed for forever. But if we already existed for forever, then that must mean that we cannot exist simply because time continues to go forth into the past and must mean somehow, the universe has been created from nothing. Only one of these things will be true. Or if both aren't, we were somehow skipped to infinity o clock.
This (the infinite past) would have meant the night sky would be as bright as the surface of the sun. At this time, the big bang, all the matter in the universe would exist as an amount that has cometh to the end of infinity, which would mean it is a singularity and directly contradicts the laws of physics. Though since events before the big bang have no observational consequences, it is better to assume we DID have a big bang that began the life of everything. The previous events are not defined and thus not measurable. These questions have been pondered on throughout the 19th and 20th centuries by all sorts. No solid conclusion has been formed, but I can direct you to a website which has a plethora of information about the epoch of our time that is, Stephen Hawking: http://www.hawking.org.uk/the-beginning-of-time.html.
I've read somewhere that we are only infinite to ourselves. What I mean by this is that, for example, a 2d drawing can walk around a circle forever but seemingly travel for an eternity. To us, the circle is observed as a finite two dimensional figure with no starting point. The fourth dimension observes us the same way. Then the fith. Then the sixth.
What I'm interested in is how the universe will eventually collapse (oh noes D: ). How will it reach out to the infinite spectral building that is the universe? Will it end up collapsing faster than it is expanding? And how is it even suppose to collapse exactly?
So what do you think?