The interior of a hollow spherical shell of mass feels no acceleration toward the shell.
Psssst! Modest, I quit the atom-in-balloon-membrane metaphore repeatedly in last post. (You took it *way* too literally.) The atom was not in the hollow of the balloon anyway but surrounded by other atoms/cosmi (in the balloon membrane) which we can not see but which could well be exerting gravitational force on ours.
As you know, the universal law of gravitation states that all masses attract all other masses, directly with amount of mass and inversely with the square of the distance between masses. (We have covered this a few times before!)
So, if there is a lot of mass out there beyond our "sphere of visibility" (event horizon) it could well be pulling our visible cosmos outwardly, accelerating the rate of expansion, as we observe.
It seems you are bent on totally ignoring what I post and going ahead with your agenda to correct my misconceptions (as always!)
I do see our visible cosmos as a relatively small *sphere of visibility* (oscillating in a perpetual "Bang/Crunch") within a much larger cosmos, beyond our event horizon. (The matter beyond our horizon, I think, is pulling our cosmos outward in an ever increasing rate of expansion, eventually to coalesce as clumps of supermassive black holes and collapse back into the Crunch phase and again "launch" a "reborn cosmos."
I asked a lot of questions in last post. The most direct and fundamental was a repeat asking if you know the difference between the theory of "expanding space as a medium" (inflation theory, curved, shaped space, etc.) and the obvious increasing distances (space) between objects which are simply moving away from each other.
If you can not or will not answer this question directly, our conversation is over.
I am glad to hear that you are dropping out of conversation with me. Your supposed superiority in all matters of science made you totally deaf to what I was saying.
Anyone actually interested in the ontology of space, time, and "spacetime" as elements of cosmology? Not as long as they are all considered established facts as given in all textbooks on relativity.
Hey... as in the OP... where did it all come from? out of a Magic Cosmic Singularity... or those ever popular clapping imaginary membranes? (Science? Really?)