❯ A Georgia Tech grad student used Astra to put a full fly connectome into Minecraft in under a week

one personGeorgia Tech graduate student Evan Smith used GPT-6 Astra to run MaleCNS v1.0 in full inside Minecraft in under a week. By his own account on social media, the simulated neural activity of 166,700 neurons drives a virtual fly in flight. His original post carried three lines: V1 is still in development, it was built with the help of GPT-6 Astra, and code and mod are coming.

the original projectThe atlas he ported is not a small thing. MaleCNS v1.0 is the first complete connectome of the male fruit fly’s central nervous system; per the research team’s disclosures it took HHMI Janelia, Cambridge and Google Research ten years, was published in Cell, contains 125 million synapses, spans the central brain, optic lobes and ventral nerve cord, identified male-specific and sexually dimorphic cell types, and is fully open source. Until now, whole-brain simulation projects of this kind were only affordable inside institutional labs. Going from a static atlas to a moving fly requires filling in neuron dynamics, sensory input and motor output.

the bar dropsTen years of institutional engineering against one week of personal project is the comparison that matters: the bar for whole-brain simulation has fallen to the level of a personal project, at drastically lower hardware requirements than comparable efforts. For now the virtual fly’s behavior is driven only by neural activity, and whether it has anything like consciousness is unknown. What needs re-evaluating is the pace of computational neuroscience — an open atlas plus a model that can write simulation code gives ordinary researchers, for the first time, the means to run this kind of exploration alone. Watch how many people run the same simulation once the code and mod ship; that is the evidence the bar really dropped.

▪ SIGNALAn atlas that took an institution ten years was made to move by one person in a week — what limits science is not only data but the hands to run it.