I have a problem with infinity....?

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zappacake

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So, if the universe is an estimated 11 billion years old, then that obviously suggests a beginning, a start point. Where there is a beginning, there's also an end, by which I mean a physical end point. If the universe has an age and a point of conception, it is therefore a finite, contained body.
So, what exists outside the finite body that is the universe? Beyond its boundaries.
Nothing?
It can't be nothing. For it truly to be nothing, the universe itself would have to cease to exist.
Suggesting that the universe must be infinite.
Yet infinity neither has a beginning nor an end.....
And I find the concept of eterenity difficult to fully grasp.
On a separate yet related note.....I know very little about the big bang other than its most basic concept....but if energy cannot be created or destroyed, and can only change form...then where did the initial matter which created the big bang come from?
It can't have spontaneously appeared....
Discuss!
 
"Where there is a beginning, there's also an end."

False. A geometrical figure known as a ray is bounded only on one side.

"What exists outside the finite body that is the universe?"

When we talk about the expansion of the universe, we are talking about an exapansion of the actual spacial dimensions that make up the universe. The apparent expansion of the three spacial dimensions is actually caused by the expansion of the 4th; just as the apparent expansion of the 2-dimensional surface of a balloon is caused by the balloon's expansion into the third.

Besides, all phenomena ever observed take place within the known universe, and indeed rely upon that universe for their very existence. From that point of view, your question makes no sense... what EVIDENCE do you have that the answer is NOT nothing?

"Where did the initial matter which created the big bang come from?"

I don't know. It probably always existed. That answer makes more sense than to claim some supernatural entity "created" it, because in the case of matter, at least we have EVIDENCE for its existence. The same thing can't be said about any "god."
 
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