You do it at the Planck temperature (1.4e32 K), obviously, giving one Planck mass (22 micrograms) per nat, or 15 ug/b. This probably has some physical relevance

You do it at the Planck temperature (1.4e32 K), obviously, giving one Planck mass (22 micrograms) per nat, or 15 ug/b. This probably has some physical relevance, but I'm not sure what.