Here we go back to the infinity theory again - any speed, constant or variable
can be surpassed. Take x, for example; X= 5,201,505,492,665,901,728,923. Let's say that the universe, if your theory is true, expands at that variable of speed (x). If that is true, then it is possible for our speed of any known space probe (spaceships, rocks, who cares?) to equal something higher than that(y). Y could, in the following equation, be ANYTHING higher than x. Therefore, it would be possible to reach the 'edge' of our universe.
Code:
Y > X (5,201,505,492,665,901,728,923)
My theory is that the universe could be one huge atom, just as we have observed all matter being made out of, that goes into an even huger piece of matter which could go into an even huger piece of matter until it simply 'stops'.
Another thing I have been interested in is my own little theory: Everything has a 'limit'. You cannot shove Y into X, as Y > X. The only way Y would ever fit into X would be if X was increased, or added to, by another variable that was equal or greater than Y. I feel this applies to the universe as well. If we eventually reach the 'end' of our universe, it will simply stop. Like the edge of a box, you can push against it but you will not break through unless you add an equal amount of mass to its edges that will 'break' it. Such as pushing against it with your hands.
I could, and probably should, go on in further depth but it's 1:30 AM and I don't want to. You're in Something For All, use your imagination.