## Where Has All the Mass-Energy Gone In General Relativity?

Einstein's general relativity geometrizes the gravitational field. Since it is no longer a field of force how can it contain, no less conserve, mass-energy? As long as we are working in Euclidean space, conservation is expressed as the vanishing of a divergence. Only for Cartesian components of Euclidean space are the components of a tensor independent of the space point to which the tensor is connected to. This is no longer true for curvilinear coordinates even in Euclidean space, let alone for non Euclidean geometries.