Starting with, but considerably going beyond a utility calculus, this
article explores the dynamics of human behavior, taken to include over
t action as well as thought and perception. On the basis of elementary
thermodynamic considerations, it is argued that all such behavior mus
t be geared to the production of power, that is, mainly, of resources,
and information. The success or efficiency of behavior itself then ap
pears to be a function both of the resources invested in it, and of th
e system's initial power, the product of its previous behavior and of
autonomous environmental occurrences.