  An attempt is made to make precise the connection between Wilson's RG and
"Holographic RG" by writing Wilson's RG in a holographic form. A functional
formulation is given for the exact RG evolution of a scalar field in $d$ (flat)
dimensions. It is shown that a change of variables maps the action to that for
a scalar field in $AdS_{d+1}$. This provides a holographic form for Wilson's RG
that can be called "Holographic RG". This mapping can only be done for a
specific form of the cutoff function in the Exact Renormalization Group
formalism. The notion of scale and conformal invariance in the presence of a
{\em finite} UV cutoff is emphasized. The discussion is primarily about the
two-point function and the Gaussian fixed point. Some remarks are made about
nontrivial fixed points.
