Is infinity unreal? We talk about infinite space or an infinite number of real numbers between 0 and 1 a sort of endless division by 2 or whatever. But I wonder how real Infinite actually is.
I cannot crack it. Anyone?
- Take an infinite line and join the ends. Is it a finite circle? Or is it an infinitely expanding circle?
- How about the real numbers between 0 and 1. If you integrate from 0 to 1 you get 1. Is that like joining the ends?
- And, even if the universe is closed (as opposed to an infinite flat Euclidian one) can it expand infinitely?
I cannot crack it. Anyone?