Astounding, really, that Michel could consider psychology any kind of science at all. So much of it consisted of throwing together. Of thinking of the mind as a steam engine, the mechanical analogy most ready to hand during the birth of modern psychology. People had always done that when they thought about the mind: clockwork for Descartes, geological changes for the early Victorians, computers or holography for the twentieth century, AIs for the twenty-first…. and for the Freudian traditionalists, steam engines. Application of heat, pressure buildup, pressure displacement, venting, all shifted into repression, sublimation, the return of the repressed. Sax thought it unlikely steam engines were an adequate model for the human mind. The mind was more like — what? — an ecology — a fellfield — or else a jungle, populated by all manner of strange beasts. Or a universe, filled with stars and quasars and black holes. Well — a bit grandiose, that — really it was more like a complex collection of synapses and axons, chemical energies surging hither and yon, like weather in an atmosphere. That was better — weather — storm fronts of thought, high-pressure zones, low-pressure cells, hurricanes — the jet streams of biological desires, always making their swift powerful rounds…. life in the wind. Well. Throwing together. In fact the mind was poorly understood.

— Kim Stanley Robinson, Blue Mars