Am I an atheist?

[Zhalentine]

If it is expanding at a measurable rate, it isn't expanding infinitely, and therefore cannot be infinitely sized (and is therefore finite).

Can you explain this a little further. If the rate isn't decreasing as time goes to infinity then wouldn't it be divergent and therefore it is expanding infinitely? I agree that at any given time it is finite, but as long as the rate doesn't decrease and eventually go to 0, it should continue to go to infinity.