On the Domain of Applicability of General Relativity

Abstract

We consider the domain of applicability of general relativity (GR), as a classical theory of gravity, by considering its applications to a variety of settings of physical interest as well as its relationship with real observations. We argue that, as it stands, GR is deficient whether it is treated as a microscopic or a macroscopic theory of gravity. We briefly discuss some recent attempts at removing this shortcoming through the construction of a macroscopic theory of gravity. We point out that such macroscopic extensions of GR are likely to be non-unique and involve non-Riemannian geometrical frameworks.

19 pages, LaTeX, submitted to Found. Phys

References in corpus (1)

• Averaging Problem in General Relativity, Macroscopic Gravity and Using Einstein's Equations in Cosmology

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