  In the holographic picture, the Brout-Englert-Higgs (BEH) mechanism in
d-dimensional Yang-Mills theories is conjectured to provide a Higgs-like
mechanism for gravity in d+1 dimensions, resulting in massive (or massless)
gravitons in IR (or UV) completions. Accordingly, one could imagine dual
(magnetic-type) fields of massive gravitons in the IR (low-energy) limit that
are coupled to the curl of their own energy-momentum, as well as to the
rotation of matter fields on large scales. This hypothesis, which might solve
cosmological issues currently ascribed to dark matter and dark energy, needs to
be examined by the future Laser Interferometer Space Antenna (LISA) mission
using observations of gravitational waves emitted from extragalactic sources.
