The Mind Can't Act Alone and AI Can't Either

Hello Interactors,

It’s winter. So, as the sun tilts toward the sun (up north) my writing tilts toward the brain. It’s when I put on my behavioral geography glasses and try to see the world as a set of loops between bodies and places, perception and movement, constraint and choice. It’s hard to do that right now without running into AI. And one thing that keeps nagging at me is how AI is usually described as this super-brain perched in the cloud, or in a machine nearby, thinking on our behalf.

That framing inherits an old habit of mind. Since Descartes, we’ve been tempted by the idea that the “real” mind sits apart from the messy body, steering it from some inner control room. Computer metaphors reinforced the same split by calling the CPU the “brain” of the machine. And now we’re extending the metaphor again with AI as the brain of the internet, hovering overhead, crunching data, issuing guidance. An intelligence box directing action at a distance is a tidy picture but it risks making us miss what’s actually doing the work.

Let’s dig into how the brain leverages the loops of people, places, and interfaces we all move through to extend it’s richness and reach.

GRADIENTS GUIDE WHILE BODIES BALANCE

Have you ever hiked or skied in snow or fog and seen the middle distance just in front of you disappear? It takes the world you thought you knew, like ridge lines, tree lines, and the comforting predictable geometry of “just ahead” and reduces it to panic stricken near-field fragments. I’ve sensed once familiar ski runs become suddenly unfamiliar not because it changed, but because it was no longer accessible to my brain.

In these moments, we’re all forced to reckon, recalibrate, and (usually) slow down as our senses sharpen. We take note of the slope under our feet and the way the ground shifts. We listen for clues our eyes can’t see and notice which direction the wind is blowing, how the light is changing, and how our own heartbeat and breath changes with each calculated risk. We know where we are, but the picture is fuzzy. Our memory only gets us so far. Everything around us becomes this multi-faceted relationship between our body making sense of it all while our brain updates its status moment by moment. The last thing a brain wants is to have its co-dependent limbs fail and risk falling.

That experience demonstrates how the world is coupled with us. In world-involving coupling a living system survives through ongoing coordination with the affordances and constraints of its surroundings. In behavioral geography this frames spatial behavior as dynamic, reciprocal coordination between individuals and their environments, rather than just isolated internal cognition.

Places actively shape decisions through the physics of the world and all its constraints. Actions, in turn, then reshape those surroundings in ongoing loops. This approach to cognition shifts focus from isolated mental maps to lived, constitutive engagements. It treats the world as a partner in our own competence.

Before brains, gradients existed. Living systems navigated heat, cold, salt, sugar, thirst, dark, and light to persist. The first cognitive problems were biophysical. Surviving in a world that constantly disrupted viability relied on basic mechanisms like membrane flows, chemical reactions, and feedback. These primordial loops coupled an organism to a given environment directly. There were not yet any neural intermediaries. These were protozoa drifting toward nutrients or recoiling from toxins. It is in this raw attunement that world-involving coupling emerges.

In 1932, physiologist Walter Cannon coined the term “homeostasis” to describe the body’s active pursuit of stability amidst environmental pressures. Living systems, whether single-celled or more complex, maintain survival variables within narrow bands. Cells detect changes in these variables, which affect molecular states. Temperature, acidity, pressure, osmosis, and metabolic concentrations all influenc