Liquid Spacetime - The Fluid Flow Of General Relativity?

Quantum mechanics is able to effectively explain three of the four fundamental forces of the Universe - electromagnetism, weak interaction and strong interaction - but it does not explain gravity, which is currently only accounted for by general relativity, which is classical physics. Identifying a plausible model of quantum gravity - a description of gravity within a quantum physics framework - is one of the major challenges physics is facing today. Despite many, many, many hypothetical models proposed to date, none has proved satisfactory or, more importantly, amenable to empirical investigation.  read more

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