  It is suggested that the exact value of the cosmological constant could be
derived from first principles, based on entanglement of the Standard Model
field vacuum with emergent holographic quantum geometry. For the observed value
of the cosmological constant, geometrical information is shown to agree closely
with the spatial information density of the QCD vacuum, estimated in a
free-field approximation. The comparison is motivated by a model of exotic
rotational fluctuations in the inertial frame that can be precisely tested in
laboratory experiments. Cosmic acceleration in this model is always positive,
but fluctuates with characteristic coherence length $\approx 100$km and
bandwidth $\approx 3000$ Hz.
