I think that, just as in mathematical logic where you cannot tell from within the system whether the system has certain flaws, so physics may not be able to know from within a physical system that it may be oscillating on some grand scale. We have NO absolute references: time is variable, mass is variable according to velocity, and space or distance is variable according to mass in it (which is the same as energy within it) since gravity is proportional to mass and gravity warps space. (In other words, space shrinks when mass is in it; expanding space would be caused by 'anti-mass' in it; maybe 'dark matter' is not antimatter but antimass. A system that could create antimass would warp space. And offset gravity. Hello UAPs.)

We may know whether some local region in space is stable and unchanging, or jiggling like jelly (because it will either not distort the path of light travelling through it or it will perturb the path of light.) But we may not be able to detect that time is changing or whether a mass is stable (since any measuring system in a region of space will distort from the same causality that might be distorting mass in the region).

Gravity waves should distort time and space within their paths and if that accelerates masses then the mases should change.

TLDR: seems like nothing is completely stable and fixed and certain and absolute. Probably the 2020 election violated the laws of physics, among other things.

I think that, just as in mathematical logic where you cannot tell from within the system whether the system has certain flaws, so physics may not be able to know from within a physical system that it may be oscillating on some grand scale. We have NO absolute references: time is variable, mass is variable according to velocity, and space or distance is variable according to mass in it (which is the same as energy within it).

We may know whether some local region in space is stable and unchanging, or jiggling like jelly (because it will either distort the path of light travelling through it or perturb the path of light.) But we may not be able to detect that time is changing or whether a mass is stable (since any measuring system in a region of space will distort from any causality that might be distorting mass in the region).

Gravity waves should distort time and space within their paths and if that accelerates masses then the mases should change.

TLDR: seems like nothing is completely stable and fixed and certain and absolute. Probably the 2020 election violated the laws of physics, among other things.