> What is "hidden physics"? Physics we don't know about. Our cells are doing that as we speak – though we'd probably call most of it “hidden biochemistry”. I t

> What is "hidden physics"? Physics we don't know about. Our cells are doing that as we speak – though we'd probably call most of it “hidden biochemistry”. I think it unlikely that we'd stumble upon such “hidden physics” unless we were evolving objects at close to the atomic scale, but it's possible; perhaps there's some way of getting phonons to interact with each other that behaves like Brownian motion, and then you can get metaphonons? The author doesn't try it probably because the author doesn't know how. I don't try it because I suspect it's not possible with the technology I have access to.