  We prove that the metric of a general holographic spacetime can be
reconstructed (up to an overall conformal factor) from distinguished spatial
slices - "light-cone cuts" - of the conformal boundary. Our prescription is
covariant and applies to bulk points in causal contact with the boundary.
Furthermore, we describe a procedure for determining the light-cone cuts
corresponding to bulk points in the causal wedge of the boundary in terms of
the divergences of correlators in the dual field theory. Possible extensions
for determining the conformal factor and including the cuts of points outside
of the causal wedge are discussed. We also comment on implications for
subregion/subregion duality.
