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A Challenging Question about an Infinite Universe.
Given the recent thread about the size of the Universe lets assume the Universe is flat and infinite (no flat finite Universes such as 3-torus allowed).
A question that spans both science and philosophy is how is how a Big Bang cosmology which has a finite expansion velocity and occurred in a finite time frame (13.8 billion years ago) leads to an infinite Universe.
In other expansion based models such as the Steady State this is not a problem as an infinite Universe is also infinitely old.
The question arises because of our intuitive association of "infinity" with something "very very big."
Steven
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