The super-humanly strong young Einstein of 1907 found three mega things out of the blue sky in his famous “equivalence principle”:
A fourth finishing implication he did not mention:
The fourth point restored the global c assumed at the outset since the equivalence principle is solely based on special relativity with its global c. Unfortunately, the new fourth point has maximum implications of its own, most of which still wait to be spotted. This is the current “physics needs help” progress. Can you rush over to help?
April 20/November 26, 2019