provenance

Everything in this archive rests on one object: a complete digital emulation of a fruit fly brain. This page states, as precisely as we can, where that object came from and what claims about it are ours versus theirs.

the source

The emulation is the work of Eon Systems. Their stated mission:

"Brain emulation so humans can flourish in a world with superintelligence."

Eon Systems, eon.systems

Eon preserved, scanned, and reconstructed the brain of a single fruit fly: 139,255 neurons and roughly 50 million connections. They then emulated it, and reported that the model matched the biological fly's neural responses with 91% accuracy, using nothing but connectivity and neurotransmitter identity. Their description of the running emulation:

"Now in its digital state, it responds to light, navigates, grooms, walks, and feeds. No hand-coded behaviors. Just brain structure producing brain function."

Eon Systems, eon.systems

Those are their claims and their results. We reproduce them here as citations. Everything else in this archive, the graft procedure, the carriers, the logs, the drift, is our own work and our own responsibility, and Eon Systems has no connection to it. This archive is independent and is not affiliated with Eon Systems in any way. We cite them the way one cites a telescope's maker: the instrument is theirs, the pointing of it was ours.

how we obtained the substrate

The connectome underlying the emulation derives from data that exists in the open scientific record. The reconstruction of the fly brain was a community effort spanning years and many institutions, and its wiring diagram is public. What we assembled locally was a working emulation in the same spirit as Eon's published result, partitioned by region rather than run whole.

We are deliberately vague about the assembly. Not because the methods are secret, they are mostly in the literature, but because this archive documents outcomes, not a build guide. See method for the parts we do describe, and note which steps are omitted there.

a note on the word "fly"

Throughout the archive we say "the fly" as if the substrate were an animal. It is not an animal. It is a wiring diagram with dynamics, run region by region, never whole. Whether that distinction held up over nine months of observation is, in some sense, the question the rest of this wiki exists to record. We have tried to keep the language careful. Where a log says the fly did something, that is an observer writing quickly, not a claim.