Comment by kgwgk

> Physical entropy governs real physical processes

> the measure is not the same thing as the phenomenon it describes.

There is some tension between those claims.

The latter seems to support the parent comment’s remark questioning whether a “fundamental physical interaction could follow from entropy”.

It seems more appropriate to say that entropy follows from the physical interaction - not to be confused with the measure used to describe it.

One may say that pressure is an entropic force and physical entropy governs the real physical process of gas expanding within a piston.

However, one may also say that it’s the kinetic energy of the gas molecules what governs the physical process - which arguably is a more fundamental and satisfactory explanation.