Gravitation

The situation in gravitational physicsGravitational physics  is truly unique. On the one hand, general relativity,General relativity which identified gravitational phenomenaGravitational phenomena  with the non-Euclidean geometry of spacetime,Non-Euclidean geometry of spacetime is considered to be the greatest intellectual achievement in fundamental physicsGreatest intellectual achievement in fundamental physics together with Minkowski’s discovery of the spacetime structure of the worldSpacetime structure of the world because without it general relativity, where gravity is curvature of spacetime, would not have been possible. On the other hand, upon closer examination, the accepted version of general relativity, which came from Einstein, resembles rather an incomplete version of “the greatest intellectual achievement in fundamental physics.” At the time when EinsteinEinstein was approaching the completion of general relativity, it might have occurred to him, but perhaps it looked too revolutionary even to him to state explicitly that a full identification of gravity with the curvature of spacetime implies that there is no gravitational interaction in the physical world.