  Superstatistics describes nonequilibrium steady states as superpositions of
canonical ensembles with a probability distribution of temperatures. Rather
than assume a certain distribution of temperature, recently [J. Phys. A: Math.
Theor. 53, 045004 (2020)] we have discussed general conditions under which a
system in contact with a finite environment can be described by superstatistics
together with a physically interpretable, microscopic definition of
temperature. In this work, we present a new interpretation of this result in
terms of the standard maximum entropy principle (MaxEnt) using conditional
expectation constraints, and provide an example model where this framework can
be tested.
