No, that is not the case. Reality is not transformed. It just looks different in different observer frames.
That would be the same as if I said your reality only “look like” it is real.
No. It is really only time that changes. Distances can appear to change because we normally measure them in relation to time.
There is nothing like ”appears to be” in the real world. A distance is a distance , and the ruler must be able to account for it. And therefore you cannot only have a apparent distance change, - rather you must always have relativistic stretch or shrink of the ruler too, - at least this is what a modified version of the theory of relativity predict.
The EM spectrum will only change when viewed from another reference frame, again because time changes.
You cannot view a specter from another reference frame, - you can only measure that the wavelength coming out from a gravitational field have changed (redshifted) – but the interpretation what caused this is misunderstood.
According to the theory of relativity a photon is fighting itself out of the gravitational field.
But this is nonsense because photons never interact with gravity.
The correct interpretation is that the photon is redshifted because it was released in a different space tension environment, where everything as well as a process, was stretched.
Energy and mass don't change, except that energy wille be converted to mass if things are accelerated to relativistic speeds.
And this is what i claim, M and E will increase due to speed, but only due to true speed.
There is no ehter. There is also no tension of space. Space IS deformed, but there is no tension.
The only thing that turned over elastic the space paradigm from the late 1800, was the Michelson-Morley experiments and later similar experiments.
These was based on a completely wrong interpretation how photons "feels" and moves in the ether.
And exactly this interpretation will be proven wrong by ISS and Galileo measurement, when it becomes clear that relativistic affects only is a result of true speed (and gravity), - or if you prefer when it becomes clear that an relativistic absolute motion reference frame must exist .
It is pretty obvious that the day we understand that there was no reason to reject the old elastic ether , - should it then not be reintroduced ?