Re: The shape of space
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I assumed the problem was because that would mean one galaxy would be moving away from the other at faster than the speed of light, which seems to violate the speed limit.
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This arises from a similar confusion. We do indeed see the two separating at faster than the speed of light, but neither of them is moving faster than c with respect to us (and when they eventually see each other, they will also not see anything moving faster than light).
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