The theory of special and general theory causes a “schizophrenic” dilemma in physics. It undeniably provides mathematically correct values, but it is undeniably epistemologically wrong in many respects. The theory of gravity "Newtonian quantum gravity" (NQG) is an ingeniously simple theory, because it precisely predicts so-called "general relativistic phenomena," as, for example, that observed at the binary pulsar PSR B1913 + 16, by just applying Kepler's second law on quantized gravitational fields. 

It is an irony of fate that the unsuspecting relativistic physicists still have to effort with the tensor calculations of an imaginary four-dimensional space-time. Advanced NQG is also able to derive the gravitational constant G and explains why G must fluctuate. It is not the first time that a lack of knowledge of the underlying physical phenomena has to be compensated by complicated mathematics. 

Einstein’s theory of general relativity indirectly already includes additional quantum physical effects of gravitation. This is the reason why it cannot be possible to unite Einstein’s theory of general relativity with quantum physics, unless one uses “mathematical tricks” that make the additional quantum physical effects disappear again in the end. 

Although Einstein's relativity delivers correct numerical results, it is founded on an illogical fundament.

In the experiments concerning time-dilation effects physicists compare always only two atomic clocks, one that is stationary and one that moves or is within another position with respect to the gravitational potential. Using only two clocks, respectively two physical states, the contradictions of relativistic physics are hidden. If more than two clocks are examined in an experiment, there result a lot of contradictions.  When one thinks the relativistic explanations of gravitational time dilatation and of the curvature of light rays by masses through to the end, they lead to absurd and contradictory logical conclusions.