[dr_dshiv]

Note that Geoffrey Hinton's first Restricted Boltzmann Machines were designed to minimize free energy. The first Restricted Boltzmann Machine, however, was Paul Smolensky's Harmonium. It maximized a metric called harmony, which was essentially the inverse of free energy. When Hinton and Smolensky collaborated with Rummelhart on a publication, they settled on calling it "goodness of fit".

My point is that saying that the brain is maximizing harmony is quite reasonable -- and much easier to understand.

Rumelhart, D. E., Smolensky, P., McClelland, J. L., & GE, H. (1986). Schemata and Sequential Thought in PDP Model. PDP, Exploration in the Microstructure of Cognition, The MIT Press, Cambridge, MA, Vol. IIº.