  Hamilton-Jacobi theory provides a natural starting point for a covariant
description of the gravitational field. Using a spatial gradient expansion, one
may solve for the phase of the wavefunction by using a line-integral in
superspace. Each contour of integration corresponds to a particular choice of
the time-hypersurface, and each yields the same answer. In this way, one can
describe all time choices simultaneously. As a demonstration of the formalism,
I will compute large-angle microwave background anisotropies and the
galaxy-galaxy correlation function associated with scalar and tensor
fluctuations of power-law inflation.
