Is the universe really expanding???

[MangusKhan]

Through a little bit of mental gymnastics it could also be seen that the universe is shrinking. Instead of looking at the universe as this limitless expanding sphere, you can look at it as a sphere of set size in which all the created masses are shrinking away from eachother. I like this view because it seems nice and manageable. Instead of infinity, you just have an infinitely deep "one".

It's basically arbitrary though.