Google Researchers' 10-Year Fruit Fly Brain Mapping Project Ported into Minecraft
A team of researchers at Google and the University of Cambridge spent ten years mapping the brain of a male fruit fly, resulting in a complete connectome of its central nervous system. This atlas, called MaleCNS v1.0, contains 166,700 neurons and has been published in the journal Cell. The atlas provides nanometer-level precise structural data and directly usable APIs.
A master's student at the Georgia Institute of Technology, Evan Smith, was able to port this brain atlas into a Minecraft simulation using GPT-6 Astra in just two days. This achievement demonstrates that the threshold for whole-brain simulation has dropped to the level of personal projects.
The brain atlas, MaleCNS, covers three parts: the central brain, optic lobes, and ventral nerve cord. It includes 262 male-specific cell types and 114 cell types with different morphologies between the two sexes. The researchers discovered that tiny changes in circuits can cause whole-brain level effects.
The combination of a fully open-source brain atlas, AI code capability, and sandbox engine has made it possible for anyone to download and run the virtual fruit fly simulation. This achievement has leveled the scientific research threshold, making it accessible to graduate students or even hobbyists.