It appears that "gravity" contains the minimum defining characteristic of the idea "background" = "space general measurement" = object identification

If the Sun lost half its mass; = includes basic concept apparently Sun losing "half its uncertainty", = Sun becoming more factorised (concentrated) ...?

E.g. it appears "a mass of leaves" is e.g. "20 - 30 leaves" i.e. there is an inherent uncertainty in the number of leaves (the number of leaves is approximately known but not exactly, the phrase "a mass of leaves" is not used to describe exactly 36 leaves?) And physics "mass" may fit this ordinary usage concept of "mass"?

If the 20-30 leaf "mass" suddenly lost half its mass; it loses half its uncertainty? So becomes say 23-28 leaves?

the overlap (the number of different ways that you can juggle the range of potential numbers of leaves in 20 -30 leaves is now
not as large? The mass has "factorised"? Total "mass factorisation" splits something into exactly two poles, a "singularity of difference" : a "same difference" (or time-integral SPACE)(key to teleportation tech)

In this scenario, it can let go of the background (of gravity). If the sun lost half its mass, on this idea it would partially let go of gravity (well conventional physics says this too?)

Incidentally, I think "electro-magnetic wave" can be thought of as "juxta-position group" (or "artificial "gravity""); if gravity did "propogate", you would get gravity here and then there, so a second or "artificial" gravity? A space-time difference...

How long would it take for an observer to notice that a "mass of leaves" was no longer "20-30 leaves", but "23-28 leaves"?
As long as it took for the information to reach them.

If the Sun lost half its mass, how long till a planet "noticed"?

Idea: a planet "observes gravity" by not observing it (by absorbing and deflecting it)(by being "invisible" to it, by falling.
This way (by falling) it creates a (continuous) "space-time difference".

It creates a "how long" (a time integrated)...?

It creates a cross-over between space and time (space-time = "room anywhere within limits", "space-time difference" = two or more "blocks" of space between limits (of e.g. a pendulum swing) = (something too valuable to say here)

How long for this unstated effect to occur?

Apparently it takes no time at all

(but space is "computed"! The Sun and the planet appear to be mindful of each other ...?)

All this has much to do with teleportation!