Double posting because something egregious caught me eye...
Quote:
Originally Posted by tore
I don't necessarily believe that our universe is infinite, but how can you say it isn't?
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As a logical argument, this is perfectly acceptable. Effectively, it is infinite. There is no possible way for us to measure the known size of the universe, or even the rate of expansion, but assuming the universe is indeed expanding...
...it's mathematically fallible. Consider:
(Infinity) + 1 = (Infinity)
(Infinity) * 2 = (Infinity)
or even
(Infinity) * (Infinity) = (Infinity)
If the universe is indeed expanding, it follows there MUST be some change in its size from state 1 to state 2. However, since
(Infinity) - (Infinity) = 0
it follows that an infinitely large universe would be a static one.