I should have been more clear.
No, all observations within the falling observer's frame and local to the observer (e.g. within a falling elevator) would not show any acceleration, gravitational or otherwise. Equivalence Principle holds. However, that's not the determining factor.
Since all...
From the perspective of an observer at any point in space above a black hole's event horizon, stationary with respect to the black hole, the blueshift of a light beam shown down to the event horizon would be infinite. By the time the front of the light beam reaches the event horizon, the light...
The gravitational time dilation at any point in space is determined by the gravitational potential so, as a clock (or observer) moves downward, gravitational time dilation will increase and time will slow. The freely falling observer will have increasing time dilation (slower and slower time)...
I wouldn't call multiverse interpretation "beautiful". Everett was kicked out of physics for proposing Many Worlds. The only reason multiverse models exist is because they are the only models that are consistent with quantum entanglement, Bell's Inequality, and non-simultaneity.
You're right that acceleration due to changes in motion can be described in special relativity's flat space and that gravity cannot. The Shapiro effect shows that light passing between two points is delayed if a gravity well is between the points. There are two ways to interpret this. One way is...
Entanglement in no way demonstrates non-locality. Local interpretations of entanglement require multiverse models (which many physicists find aesthetically unappealing). The reason we can know that action-at-a-distance (AAAD) is an incorrect interpretation of entanglement is that it requires...
In Relativity there is no distinction between reference frames and observers. In Relativity (and all physical science) observed (measured) reality is reality.
Gravitational waves cause relative motion between points at different phase. But, for each observer, spacetime defines stationary. As a gravitational wave passes, each point will feel nothing because the point will remain stationary and move with the wave. When you have two points at different...
Traveling faster than light will not cause one to arrive before leaving. A clock at the traveler's starting point will appear to have gone backward but a FTL return trip will not cause the traveller to return before leaving. Traveling infinitely fast could do it, maybe, but that would require...
The rubber sheet model is imperfect but still excellent. It shows the curvature of space due to stretching (dilation) in a gravity well. Instead of viewing it from the side, it should be viewed from above because gravitational space dilation is radial... away from the observer. Also, as the...
A problem with the Schwarzschild view of black holes is that it depends upon a Euclidean view of space. The radius is defined from the perspective of an observer at infinite distance. This eliminates the spacetime dilation of the gravitational field. For one thing, the radius is defined from the...
The "Action-at-a-Distance" interpretation of quantum entanglement requires simultaneity... the wavefunction collapse takes place instantly, across all of space, from the perspective of the observer that sees him/her-self as the one to make the first observation of part of the entangled pair...
Despite experimental verifications of Special Relativity, which requires non-simultaneity, contemporary quantum mechanical interpretations of entanglement depend upon instantaneous transfer of information. Contemporary physics has no self-consistent model for time.