Indeed. Sorry for getting things mixed up. :)
Thanks for your answers. Is the problem that the balloon analogy is only valid to show how everything can move away from everything else with no single place being the center of the expansion, and NOT further valid to conclude that space is the 3D...
I've read a bit about "dark energy" to explain how the expansion of space can accelerate and overcome gravity's tendency to pull space together again.
I'm just a curious layperson, so please have me excused if my questions don't make sense or are very naive. I've tried searching for answers in...