Interesting Ian said:
Why is the beginning of the Universe considered to be more of a special event than any other event that has happened since then?
Because we know very little about it, and, with all things, we humans feel it's very important to know as much as possible, especially about things we
don't know about.
The concept of importance is pretty subjective. Over a long enough period of time, everyone's survival rate drops to zero, and I think the answer is
it's only important to us.
The question is why did something arise?
Another interesting question. Something we may not ever know. But then, what makes you say it arose? If there was nothing whatsoever before the big bang, not even time or space, then how do you define something arising? Someone else on this thread made a good point: The universe is finite in age and size, but there was never a time when the universe didn't exist.
Here's something else that came to me: The universe, under the Big Bang model, is finite, right? It's expanding, getting bigger. So logically we could go to the edge of the universe, right? See what's beyond the universe?
Well, no. If there was anything "beyond" the universe, it would still be considered part of the universe, right? And since the universe is all of space, then would it not be both finite and infinite? Can we define something, in the absence of the universe, with no time or space, as anything?
Here's an example: A number line. On our current number line, we have (in the positive direction) 0 to infinity. Infinity encompasses every number imaginable.
But say we only had 100 numbers on the number line, and no more. Nothing exists outside of 0 and 100. So why can't 0 to 100 be considered infinity?
So if you had an FTL spacecraft and a lot of free time, and you just "kept going", would you eventually fall over the "edge" of the universe into the nothingness that was there before the universe?
Can nothing exist, since it is, after all, nothing? Of course not.
And how could the universe "arise" out of nothing, if there is no such thing as absolute nothing?
I'm not saying these questions don't have answers. I'm just saying we might be able to comprehend the answers just yet.