Space Time in Einstein's General Relativity, its origin, and incompatibility with Quantum

Einstein's theory of space revolutionized the view of space as a dynamic entity that participates in the motion of the universe. Gravity is not a force but the curvature of space itself affecting the motion of objects. Space in general relativity is a curved manifold with various features, unlike the uniform grid of quantum mechanics. It can change the relative distances between points, giving rise to phenomena like wormholes. General relativity also introduced the concept of information propagation at the speed of light, contradicting Newtonian gravity. Einstein's thinking began with the special theory of relativity, which explained the constancy of the speed of light and resolved puzzles in electromagnetic theory. It took another 10 years for him to develop the general theory of relativity, which explained how space is curved and how curvature explains gravity. The connection between gravitational mass and inertial mass led him to conceptualize space as a curved object. According to Einstein's theory, tracking space backwards in time reveals an expanding universe that was hotter and denser, suggesting a beginning to space and time.