Einstein and the reprehensible idea - Abdelkader Benzian - Bog

Any physical object whose radius becomes less than or equal to the Schwarzschild radius will undergo a gravitational collapse and become a black hole where light cannot escape from the gravitational fields, this one represents a solution of the Einstein equation, introduced by Schwarzschild, it contains two singularities, one describes the center, and the other describes what is called the event horizon, the black hole and its singularities cannot be considered as Einsteinian space-time in the classical sense. Then, a new theory of gravitation combined between General Relativity and Quantum Theory must be built to represent them.