You know, scientists recently managed to create a complete map of the brain of an ordinary fly, the one that sits on shite.
In October 2024 the FlyWire consortium published the wiring of one fruit fly’s whole brain — 139,255 neurons, reconstructed from electron-microscope slices.
Paper: Neuronal wiring diagram of an adult brain, Nature 634, 124–138. Video: FlyWire Princeton.