  The velocity anomaly recently reported by the OPERA collaboration appears
strikingly at odds with the theory of special relativity. I offer a
reinterpretation which removes this conflict, to wit that neutrinos yield a
truer measurement of Einstein's limiting speed, and that light and indeed all
other matter are retarded by additional interactions with the dark universe. I
discuss existing experimental constraints and show that such a notion,
considered cosmologically, can be subsumed in the dark-energy equation of state
in an expanding Friedman-Robertson-Walker (FRW) universe. Planned measurements
of the temporal variation in redshift have the potential to distinguish the
possibilities.
