NORTHWIND GRID / ABOUT THE SCIENCE

How the fly actually decides

The honest version, because the novelty only means anything if it is true.

How a day is made: requests reach the fly from two places, the chaos engine's random events above and, below, a loop labelled Next day carrying what the departments asked for the day before. Left to right: the requests go into the real fruit fly connectome, which is not AI; it turns each one into a decision; department AI agents react to the decisions; and the site publishes the day. — How each day is made. Requests reach the fly from two places: the chaos engine's random events, and what the departments asked for the day before. The fly's real neurons, not AI, turn each request into a decision. AI plays the departments reacting to those decisions, their reactions shape the next day's requests, and the site publishes the day.

What a connectome is

A connectome is a wiring diagram of a nervous system: every neuron, and every synaptic connection between them, reconstructed from electron-microscope imaging of real tissue. For the fruit fly it is now essentially complete: a full map of one animal's brain and nerve cord, with the strength of each connection measured in synapse counts.

The data this site uses

Decisions here are computed over a curated subgraph of the male-cns:v1.0 connectome (the male Drosophila central nervous system), extracted on 2026-09-12:

4502 real neurons
203742 real connections between them
4499338 synapses in total

Every neuron, every type label and every connection weight is an unmodified value from the published dataset. Nothing is synthesised.

How a decision is actually computed

Encode. The day's decision has structured features: how costly it is, how risky, how urgent, how much friction it causes, which department is asking, and whether a crisis is running. Each feature drives a specific population of real sensory neurons, through a channel named in every decision's "Why the fly did that" table. Risk enters as Threat, through looming detectors, the cells that fire when something rushes at the fly. Urgency enters as Clamour, through Johnston's organ, the fly's ear. Cost enters as Bitterness, through taste neurons on the legs. Friction enters as Irritation, through the bristles. A crisis switches on Daylight, the photoreceptors, and turns up Threat. The department arrives as Odour: each one is assigned its own olfactory glomerulus, so it always smells the same way.
Add seeded noise. A small amount of jitter, derived deterministically from the day number and the decision, so the same situation always produces the same reaction while still feeling organic. One channel, Allure, carries nothing but this irrationality: a male-specific visual type associated with the "love spot" flies use to track a mate.
Propagate. Activation spreads across the real synaptic weights for a fixed number of rounds, bounded each round so the signal neither explodes nor dies.
Read out. Five populations of real descending and motor neurons are each read as a decision, and the strongest wins. Forward-walking neurons mean the fly proceeds: Approved. The escape circuit, including the Giant Fiber (the cell that launches a fly off your sandwich), means it refuses: Rejected. Backward-walking neurons mean it reverses out: Deferred. Flight-power neurons mean it sends the problem upstairs: Escalated to the board. The grooming neurons mean it stops to clean its eyes and asks to see the proposal again: More information demanded.

What this is not

This is a novelty. The fly does not understand security. It has no concept of a budget, a regulator, or a quarter. We run a stimulus through real neural wiring and then interpret the output as a corporate decision. That interpretation is ours, and it is a joke.

Calling the Giant Fiber's output a "rejection" is not a finding about flies. That cell drives escape take-off; it has no opinion about vendor contracts. Nothing on this site is evidence about management, decision-making or cognition, and nothing here is security advice.

Credit where it is due

Male CNS connectome (male-cns:v1.0), FlyEM Project Team, HHMI Janelia Research Campus, with Google Research, the University of Cambridge Department of Zoology, and the MRC Laboratory of Molecular Biology. Licensed CC-BY.

The connectome was produced by the FlyEM project team at HHMI Janelia Research Campus with Google Research, the University of Cambridge Department of Zoology, and the MRC Laboratory of Molecular Biology. The dataset and its documentation. Licensed CC-BY.