Fascinating question. I don't think it is. The pure mathmatists have several infities. Like infinity plus 1; infinity times infinity; and so it goes. I recall a maths lecturer referring to the "first countable infinity", which you get by just adding 1 each time. Weird.
If infinity exists, and you could travel through it, you could go forever at the speed of light and never get closer to the end than when you started. And if the universe is infinite, no matter where you stand you could say you we're in the middle and you would be correct, no end, no last number,no beginning