So a beam of light with a head start, half-way across the universe from you, could "wrap around" and eventually reach you. But the beam of light couldn't "wrap around" and reach itself, because the universe constantly moves the goal post before light beam gets the chance?
Yes. The fact is that does it not prove or disprove the fact that our universe is wrapped around - it may be either way. The parent's point is invalid because we wouldn't be able to see the wrapped around light even if it existed.
