Thanks. Still unsettling that while both perspectives are equally valid, Newtonian physics is so much more convincing than what came before (clockwork/earth at the center of the universe).
So while both relative views are equally true, the laws of physics (or at least mathematics) don't seem to hold both those views with equal esteem.
In Newtonian physics the sun is the preferred frame of reference.
However with the introduction of the mathematics of general relativity by einstein in 1915; we can prefer whatever reference frame we like and we get the same correct predictions. Predictions that are more accurate than Newton's.
So while both relative views are equally true, the laws of physics (or at least mathematics) don't seem to hold both those views with equal esteem.