@quirk
The finiteness of the speed of light suggests that _spacetime_ is hyperbolic rather than Euclidean, but it tells us nothing about the curvature of space.
@oblomov@ZachWeinersmith except for the fact that, as light travels through space, its vector is being changed from the straight line at infinite speed it wants to travel at to a vector where we observe it travelling at 299 792 458 m/s, which is the universal speed of light. It's folly to dismiss this interaction when determining the shape of the universe, as this may give us a clue as to both the size and shape of the universe.
Gregory's Server
@oblomov @ZachWeinersmith except for the fact that, as light travels through space, its vector is being changed from the straight line at infinite speed it wants to travel at to a vector where we observe it travelling at 299 792 458 m/s, which is the universal speed of light. It's folly to dismiss this interaction when determining the shape of the universe, as this may give us a clue as to both the size and shape of the universe.