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Originally Posted by skullfunk
Yakk: I would have to disagree. Unless our universe is already infinitely old, it never will be. Let's say that it is currently 10000000000000000000000000000000000000, or n, seconds old (a complete fudge: just imagine something finite). Then, in one second, it will be n+1 seconds. So, for the universe to eventually be infinite, n+1 must eventually reach infinity. However, it never will.
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That is if you place yourself within time.
A line that continues on forever continues on forever. At any one point, there may only be a finite amount of line to the left of your point, but if you look at the line as a whole the line is infinitely long.
The universe "will never be infinitely old", but it can be infinite.
Imagine an infinite plane. You can only measure out a finite amount of it, but that doesn't mean the plane isn't infinite.
The set of counting numbers is infinite, but you cannot count up to infinity.
The inability to finitely measure the duration of an infinitely long in duration universe does not mean the universe isn't infinitely long in duration.