Einstein vs Crisis of Modern Physics

                              Einstein Fountain in Ulm, where Einstein was born in 1880.

John D Norton describes the total confusion surrounding Einstein's theories of relativity in the often cited article from 1993:

• General covariance and the foundations of general relativity: eight decades of dispute

Summary:

• Einstein offered the principle of general covariance as the fundamental physical principle of his general theory of relativity and as responsible for extending the principle of relativity to accelerated motion. 
• This view was disputed almost immediately with the counter-claim that the principle was no relativity principle and was physically vacuous. 
• The disagreement persists today. 

Conclusion:

• The requirement of general covariance, taken by itself, is even devoid of physical content. 
• The foundations of general relativity do not lie in one or other principle advanced by Einstein.

We learn that Einstein's principle of relativity as the basic postulate of his special/general theory of relativity had no meaning accepted by the scientific community in 1993, which is still the case today. 

Nevertheless, the accepted view by the physics community is that modern physics is based on Einstein's theory of relativity and quantum mechanics. However, these two theories are inconsistent, which poses a severe obstacle to progress and has resulted in a crisis of modern physics acknowledged by the physics community. 

But here is an open road to resolution of the crisis: Get rid of Einstein and resurrect physics as science. 

Einstein was overwhelmed by a observation made by Lorentz that wave equations happen to read the same under Lorentz coordinate transformation, but did not listen when Lorentz cautioned that his transformation had no physical meaning. So Einstein proclaimed in his special theory of relativity the Lorentz transformation to a basic principle of physics demanding all physical laws to obey a dictate to be Lorentz invariant, even if it had no physical meaning and in particular ruined Newton's mechanics as the pinnacle of classical physics, because it was Galilean invariant with direct clear physical meaning but not Lorentz invariant.  Einstein then extended to general covariance in his general theory of relativity, again devoid of physical content.  

There are many physicists who understand that it would be wise to give up Einstein's relativity theories and so get out of the crisis of modern physicists, but there is also a heavy establishment invested in Einstein for which the crisis is not yet severe enough to require action.  You still have to accept Einstein's physics even if it is devoid of physical content, which makes it impossible to question on physical grounds. Einsteins was not stupid! Only his blind followers.