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Physicists do not universally agree that a quantum theory of gravity is inevitable, or even possible. Einstein's theory of gravitation described gravity in a way that is so fundamentally different from the other interactions in nature that many physicists no longer gravity to be a force at all. Rather, under the Einsteinian interpretation, gravitation is an inherent property of spacetime and has no analogue at the quantum level at all. Other physicists believe that the Einsteinian interpretation is merely a useful large-scale approximation of an interaction which we have not yet detected on the subatomic scale.

Physicists do not universally agree that a quantum theory of gravity is inevitable, or even possible. Einstein's theory of gravitation described gravity in a way that is so fundamentally different from the other interactions in nature that many physicists no longer gravity to be a force at all. Rather, under the Einsteinian interpretation, gravitation is an inherent property of spacetime and has no analogue at the quantum level at all. Other physicists believe that the Einsteinian interpretation is merely a useful large-scale approximation of an interaction which we have not yet detected on the subatomic scale.

To date, no satisfactory theory of quantum gravity has been advanced, but research continues.

To date, no satisfactory theory of quantum gravity has been advanced, but research continues.

 

[[Gravitation demystified]] that explains [[Einsteinian gravitation]] in terms of curvatures of space and time (while the spacetime is flat).

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