Quote Originally Posted by mojo
I have to take some responsibility. I'm confused by some of this, too.
Yeah I think my confusion is based on my misunderstanding of what "expansion" actually is.

There is a feeling in me though that we're missing something simple, perhaps something as simple as an optical illusion. The fact we naturally think in three spacial dimensions is a hinderance to our intuition, imo. We're travelling through spacetime away from every direction we look in, and that isn't easy to imagine. Our motion is towards what we can't see, spactime that is yet to exist.

Perhaps that's where the expansion is. We're moving into expanded space, it expands as we move into it.