  Decoherence has the potential to explain all existing neutrino data including
LSND results, without enlarging the neutrino sector. This particular form of
CPT violation can preserve the equality of masses and mixing angles between
particle and antiparticle sectors, and still provide seizable differences in
the oscillation patterns. A simplified minimal model of decoherence is
sufficient to explain the existing neutrino data quite neatly, while making
dramatic predictions for the upcoming experiments. Some comments on the order
of the decoherence parameters in connection with theoretically expected values
from some models of quantum-gravity are given. In particular, the quantum
gravity decoherence as a primary origin of the neutrino mass differences
scenario is explored, and even a speculative link between the neutrino
mass-difference scale to the dark energy density component of the Universe
today is drawn.
