“Since everything in it is spinning, I would conjecture (that’s a fancy guess) that the Universe is spinning as well..........”
I would agree. And maybe this is the missing factor in it all that just might explain quite a bit. I think you hit on something here not being considered.
Ever float down a calm river on inner tubes in a group? You can paddle back and forth between each other as if you are in absolute still water because you are all floating along with the current at the same speed. Against the current, with the current, across the current makes no difference from that local perspective, it feels like you are in still water. If you can’t see the bank moving you would never know or feel it. You are basically in a still pool but that whole pool is moving along.
This is also why ‘Time Travel’ will never be practical as well.
Einstein’s Theory doesn’t disallow Time Travel, but if you actually did invent a machine that could, you would die within seconds of reaching your time destination.
Why?
Because everything in the entire Universe is moving.
Every second you are travelling thousands of miles, but you don’t notice because everything else is travelling along with you.
The Earth is spinning about 2000mph on it’s axis, 18.5 miles per second as it revolves around the Sun, 143 miles per second as the Sun revolves around the Milky Way Galaxy, which is moving 370 miles per second relative to the Cosmic Microwave Background.
So if you travelled back or forward in Time by just one second, you would find yourself in interstellar or intergalactic space with no way back............