  We analyze consequences of trying to replace dark matter and dark energy with
models of stochastic spacetime. In particular, we analyze the model put forth
by Ref. [1], in which it is claimed that ``post-quantum classical gravity"
(PQCG), a stochastic theory of gravity, leads to modified Newtonian dynamics
(MOND) behavior on galactic scales that reproduces galactic rotation curves. We
show that this analysis has three basic problems: (i) the equations of PQCG do
not lead to a new large scale force of the form claimed in the paper, (ii) the
form claimed is not of the MONDian form anyhow and so does not correspond to
observed galactic dynamics, and (iii) the spectrum of fluctuations is very
different from observations.
