Umm, you went from not being able to tell if you are accelerating to you are definitely accelerating.
Uh, no. I said, in your FoR, you cannot tell whether the free-falling object is accelerating down or the Earth accelerating up to it.
General Relativity does not state that the ball is not accelerating, only that it might not be accelerating. So it is not "evident" that Universal Acceleration is occurring.
So GR states that free-fall, motion along geodesic, is not an inertial motion?
However, this Equivalence Principal only applies of you don't change your frame of reference, and only if you are in the same frame of reference as the Observer (the ball or the Earth in this case).
My FoR is non-inertial. The ball's FoR is inertial. The ball accelerates relative to me. Sure doesn't seem like the same FoR to me.
As soon as either of this conditions are voided, it becomes possible to tell the difference. Experiments done like this have conclusively proven that the Earth is not accelerating upwards, hence UA is "evidently" (ie based on evidence) not true. We are not Accelerating upwards.
Yes we are. According to GR, the Earth applies an upward force on us, causing us to accelerate upwards. Thus, Newton was wrong, because he assumed we are at rest.
If the Earth is accelerating upwards, then we will soon hurt the moon and the sun! What a nonsense theory.
DE accelerates all objects in the universe at the same rate. We will not crash.