No.Summary: is there an equal and opposite reaction to the expansion of the universe?
Since there isn't one, this part of your question is not meaningful.if the universe is expanding, what is the equal and opposite reaction to this action?
The expansion of the universe is not that kind of thing, weirdly enough. There are TONS of threads on it here on PF. I suggest you poke around and read some of them, and/or just study the phenomenon online. Although exactly WHAT dark energy is is not well understood, how it works is.No?
well i guess we could make one up....we can call it dark action. Now my equations work! j/k
but really isn't there dark energy? doesn't energy do work? isn't work action?