The Scale Of The Universe Is Larger Than We Imagine

Our Universe  is larger than our imagination. This amazing flash shows you how we are small to the discovered universe.

Current estimates place the size of the Universe at 93 billion light years across www.universetoday.com

It has a limit because "infinite" applies only to numbers, like the answer concerning how many cats you would have. What ever number you say, I can always add one more. That is what infinite means.

93 billion light years is a finite number, but as we all know the universe is expanding. You ask "expanding against what?" That, my friend, is one of the most interesting metaphysical questions I can think of, and I have thought of it often.

Before the Big Bang (presuming that theory is correct) all matter and energy were in what is called a "singularity". The laws of physics reached the right place in the cause-and-effect nature of physics that the "effect" was the bang. But all things in existence were in that singularity. No where else.

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That means that not even "nothingness" existed outside the singularity. If "nothingness" existed, it would be an existent, a "something", and therefore not all things in existence would have been in the singularity. Nothing has changed. Outside the universe there is no "nothingness" even today. To day there is nothingness is a contradiction of "somethingness".

And to say other universes exist outside of ours is to compound the problem---what is outside of those universes? It is the identical question as, "If God created all things, what created God?" If there was "somethingness" of any sort outside the singularity, then "existence" does not reside in the universe; it resides in more things than the universe.

As to where did the existents of our existence come from, the answer is given by Leonard Peikoff:

"Existence is a self-sufficient primary. It is not a product of a supernatural dimension, or of anything else. There is nothing antecedent to existence, nothing apart from it—and no alternative to it. Existence exists—and only existence exists. Its existence and its nature are irreducible and unalterable."

This answer relies on the Primacy of Existence theory, which states that all things exist even if you don't exist to see it. If a tree falls in the forest and no one is there........Well, if the universe exists and no one is there, doesn't it still exist?

Source:
http://www.universetoday.com/guide-to-space/the-universe/