  In the previous companion paper, we proposed a subclass of wavefunctions to
describe macroscopic solids that resolved and extended the theory quantum
measurement and gave a more specific treatment of quasiparticles. Here we
extend these notions to thermalization of solids and gases and to gas state
hydrodynamics. This gives a modification of the thermodynamic limit to justify
the canonical averages for "typical wavefunctions" without the use of
ensembles. The energetic cost of vorticity is contrasted in the classical and
ultracold gas limits. From this perspective, we then examine the applicability
of thermo and hydro to ultracold gases and compare with the implications of
pure state evolution. We illustrate how the proposed quantum limits on
viscosity could be reinterpreted in terms of Schr\"{o}dinger induced evolution
of the one-body density function but some history dependent measurable
properties should still persist.
