You are being illucid. Of course it's rotating; but in synch with our position (in tidal lock with us). So, imagine the E-M system stopped and you see revolution around the Earth, not only from the Earth but from other points.

The revolution is an illusion (one level, one relative motion) but in fact over space the Moon is seen rotating and NOT revolving around the Earth.

Which point of view is "true", Menow?

Physically, the rotation might be said to be truer; but relativity-wise, both are.

And since the angular momentum won't cease, which is right, if the Moon were halted, then FROM WHAT RELATIVITY POINT OF VIEW would it be rotating? Would the Earth see it? Likely not. Its tidal lock would not just cease, right?

So how about from the Sun? Nope. But it would still be rotating relative to the Galaxy. So yes, it would still conserve momentum.


Why do you constantly use the term "relativity" wrongly? Are you talking about Einstein's relativity? If so, then you are dead wrong. But we've come to expect that.

Th relativity insight came from imagining all motions at once - and seeing them from a beam of light.

The insight was from the superposition of all layers/ points of view on motions.

Hence, relative --

But yes, relativity theory is a specific thing, to do with light.