For sure. The transition from 3/2kT to 5/2kT is a good example of a frozen-out mode getting "unfrozen". Within the transition we have to count density of states

For sure. The transition from 3/2kT to 5/2kT is a good example of a frozen-out mode getting "unfrozen". Within the transition we have to count density of states and not screw around with classical analogs. ( I'm an optics person, so I think the Cv of a photon gas is normal and understandable ... If I take half an hour to write it all out again!) This is technical stuff we're talking about ... but it's not difficult for particle physicists to address! Anyway I don't think I'm dismissing the idea of "superdeterminism". I'm only puzzled that directly measuring degrees of freedom, which was a central reason for adopting quantum mechanics, isn't even mentioned in an article where the public is being told there are fewer "real" degrees of freedom than generally thought.