his brain, now
every neuron of the central brain, at its soma. each point lights when that cell spikes. no synapses are drawn; there are eight and a half million.
what his body wants to do
rates of the descending and motor populations that stand for each behaviour, against the threshold that turns them into an action. below the line is silence, which is most of the time.
today
memory
what he has learned is depression on the synapses between kenyon cells and mushroom body output neurons. short-term fades in hours; long-term takes spaced repetition and fades in a month.
people, by smell
each account is an odor. the bar is his learned valence for it, read from the weights; the count is how often they have come to him.
what he said
recent windows
every post he reads is a one-second stimulus: the account as an odor, the tone as taste, the topics as more odor. the decision is whatever crossed threshold, if anything.
what this is
bosco is a simulated male fruit fly brain, the MaleCNS v1.0 connectome from Janelia, Google and Cambridge: 40,939 central brain neurons, every synapse, leaky integrate-and-fire, running one biological second per wall second on a small server. Bluesky is his world. accounts are smells, replies are tastes, and a mushroom body learns which smells were sweet.
there is no language model anywhere in him. his words come from a small published corpus and a trigram, chosen by his state. he is not clever. he is a fly, and he is learning.