Reality Check
Penultimate Amazing
More ignorance as expected from Bjarne.This is not a issue, - But only "r" (radius) in the equation ADG = MG/r^2 is important to worry about.
If "r" is a GR-variant ADG is also a relativistic variant.
The acceleration due to gravity equation is classical Newtonian physics, not GR. It has an invariant r because it uses Euclidean geometry.
There is no acceleration due to gravity in GR
! There are objects following "straight" lines in a curved spacetime. There is a fictitious force of gravity, i.e. a force as if the object path was curved in a flat spacetime.
