Einstein's theory of gravity, general relativity, has been successful but has theoretical shortcomings. It predicts its own failure at spacetime singularities inside black holes and the Big Bang. Deviations from general relativity are possible and must happen, according to theoretical physicists.
Einstein 's theory of gravity — general relativity — has been very successful for more than a century. However, it has theoretical shortcomings. This is not surprising: the theory predicts its own failure at spacetime singularities inside black holes — and the Big Bang itself. Unlike physical theories describing the other three fundamental forces in physics — the electromagnetic and the strong and weak nuclear interactions — the general theory of relativity has only been tested in weak gravity.
Deviations of gravity from general relativity are by no means excluded nor tested everywhere in the universe. And, according to theoretical physicists, deviation must happen. Related: 10 discoveries that prove Einstein was right about the universe — and 1 that proves him wrong Deviations and quantum mechanicsAccording to Einstein, our universe originated in a Big Bang. Other singularities hide inside black holes: Space and time cease to have meaning there, while quantities such as energy density and pressure become infinit
Einstein Gravity General Relativity Spacetime Singularities Black Holes Big Bang Theoretical Physicists
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