free energy

Free Energy Principle – A quick look and some concerns

The blogosphere is humming about Free Energy Principle – an interesting and general take on brain function that sees the brain as performing only one task: maintaining proper homeostasis of the organism through the good use of an internal model of the environment. What does this theory purports to be? What problems and concerns can be identified with this approach? Does it have a chance of becoming a number one theory of the mind and brain?