Originally Posted by speedfreek

Your understanding is too simple, as you are neglecting the Copernican principle, even if you think you aren't. If all observers think everything is diverging, then no observer will ever see everything converging.

In your example where the Earth is expanding and that expansion causes all coordinates to become more distant from their neighbouring coordinates, then no coordinate ever gets closer to another and none will ever "collide". If it looks from this side like everything is moving towards the other side, but from the other side everything looks like it is moving towards this side, but on no side does any coordinate actually converge towards another, then there is nothing but an apparent illusion of convergence that does not really exist.