id author title date pages extension mime words sentences flesch summary cache txt work_zx7vuyqa7ngttekpen37ug2kcq David J. Baker Spacetime Substantivalism and Einstein's Cosmological Constant 2005 15 .pdf application/pdf 5512 360 60 space of classical physics has been replaced with the four-dimensional, variably curved spacetime of general relativity (GR), but the question faced by manifests itself as a constant average curvature of empty spacetime, a builtin tendency of the universe to expand, it is an instance of nontrivial causal which describes only the gravitational field, it is not a property of spacetime. ...geometric structures, such as the metric tensor, are clearly physical fields in spacetime... As it is, the matter field described by Tij can gain or lose energy and momentum. field as causally efficacious – gravitational waves have the power to accelerate matter. of an entity's potential to cause motion, and if the gravitational stress-energy the new field equations entail constant average curvature of spacetime in the Minkowski spacetime, and gravitational causation between physical objects localizable as the energy of matter fields described by Tij. Hoefer's argument ./cache/work_zx7vuyqa7ngttekpen37ug2kcq.pdf ./txt/work_zx7vuyqa7ngttekpen37ug2kcq.txt