ON THE DOMAIN OF APPLICABILITY OF GENERAL-RELATIVITY

In consider the domain of applicability of general relativity (GR), as a classical theory of gravity, by considering its applications to a a variety of settings of physical interest as well as its relationship with real observations. We argue that, as it stands. GR is deficient w hether it is treated as a microscopic or a macroscopic theory of gravi ty. We briefly discuss some recent attempts at removing this shortcomi ng through the construction of a macroscopic theory of gravity. We poi nt our that such macroscopic extensions of GR are likely to be nonuniq ue and involve non-Riemannian geometrical frame works.