[Brian W (Brian)]

Originally Posted by Miaplacidus

See, that's the problem with similes. You've got to pick the right one. What you're forgetting is that the rock contains the pool it is thrown into. A marginally more useful analogy is to a balloon that is being blown up with air, with the 3D universe represented by the stretching latex skin of the balloon, with all parts moving away from each other. Ceci n'est pas une pipe...

okay that makes sense but there is still only one centre to the balloon.