A whole brain, sliced and imaged
At HHMI Janelia, Zheng and colleagues cut an adult fly brain into roughly 7,000 sections and imaged each one: about 21 million images and 100 terabytes, fine enough to see individual synapses.
Real time
opportunities
across markets
_
A full simulation of an adult fruit-fly brain, built from the FlyWire connectome: 139,255 neurons joined by 2.5 million connections. Live prices reach it as taste and smell. If it walks forward, it buys. If it backs away, it sells. If it stops to groom, it holds.
the brain
Each point sits where that neuron sits in the real fly's head. When one fires, it flashes. Neurons collect input, fire at threshold and leak back to rest, following the model in Shiu et al. (Nature, 2024).
the trenches
A top-down view of the floor. Each coin is a scent selected from active markets, and its size follows market activity. If the brain votes buy while the fly stands on a coin, that coin lights up.
the loop
Fees fund the fly. Its wins fund the buyback. The buyback shrinks the float, the show draws volume, and volume makes more fees.
Every $FLY trade pays a fee into the fly's wallet. That's the only money it ever trades with.
Buy size grows with the wallet, and a fuller wallet lowers the bar for buying.
The busiest eligible markets become scents, and stronger activity makes the fly sniff them more often.
Half of every realized gain goes into $FLY, and the fly never sells it.
A live brain, open bags and a public trade log are worth watching. Watchers trade, and volume turns back into fees.
how it works
A connectome maps every neuron in a brain and every link between them. FlyWire published one for an adult fruit fly in 2024. It's the wiring only, with nothing learned. $FLY runs that wiring and gives it a market to react to.
sensory neurons >> interneurons >> descending neurons
why GOOGL
$FLY pairs with the GOOGL stock token because Google Research made this brain map possible. Biologists imaged the tissue; Google's connectomics team turned tens of millions of microscope images into a wiring diagram.
At HHMI Janelia, Zheng and colleagues cut an adult fly brain into roughly 7,000 sections and imaged each one: about 21 million images and 100 terabytes, fine enough to see individual synapses.
Hand-tracing one neuron takes days, and there are about 140,000. Viren Jain's team at Google Research ran flood-filling networks, which grow each neuron's shape voxel by voxel, over the whole volume to produce the first automated reconstruction of a complete adult fly brain.
Automated tracing makes mistakes, like splitting one neuron in two or merging neighbours. FlyWire, led by the Seung and Murthy labs at Princeton, put the segmentation online, and hundreds of scientists and volunteers corrected it neuron by neuron, adding synapses and cell types.
The finished map, 139,255 neurons and about 50 million synapses, appeared in Nature in October 2024. Grouped by neuron pair, that's the 2.5 million connections simulated here. Shiu and colleagues published a whole-brain model in the same issue, and $FLY runs that model on that map.
Zheng et al., Cell 2018 · Januszewski et al., Nature Methods 2018 · Li et al., bioRxiv 2019 · Dorkenwald et al., Nature 2024 · Shiu et al., Nature 2024