This approach also neatly maps to the biological architecture of brains as they’ve evolved over time. From ancient fish to amphibians to mammals to primates and eventually modern humans, what we observe is that new behaviors emerge in response to new environmental possibilities. When dinosaurs died off, for example, this meant some nocturnal creatures could move about the world in the daytime with less risk of being eaten, giving rise to a variety of new capacities. The history of our nervous system, Cisek observes, is one of “continuous extension of control further and further into the world.” (His forthcoming book will explore all this in greater detail, and yes, I’m hoping this essay puts subtle pressure on him to finish it.)
