Re: Universe is finite or infinite?
See that is why you need to look up the shape torus. It will make sense how it could be expanding and still be finite and have a limit! Beyond the boundary is Cosmic background radiation which has been proven to exist. I just mentioned this in another thread. Weird. Beyond the cosmic radiation, it is possible that there are other universes. Here is a video on doughnut shaped universe:
Of course, this is one many theories proposed. I like this theory.