Solid Consistency
  We argue that $isotropic$ scalar fluctuations in solid inflation are
adiabatic in the super-horizon limit. During the solid phase this adiabatic
mode has peculiar features: constant energy-density slices and comoving slices
do not coincide, and their curvatures, parameterized respectively by $\zeta$
and $\mathcal R$, both evolve in time. The existence of this adiabatic mode
implies that Maldacena's squeezed limit consistency relation holds after
angular average over the long mode. The correlation functions of a
long-wavelength spherical scalar mode with several short scalar or tensor modes
is fixed by the scaling behavior of the correlators of short modes,
independently of the solid inflation action or dynamics of reheating.
