# FlyMarket — data, model and 3D world

This experimental game is independent of Google, Janelia and Robinhood. It uses session-only points and does not accept, transfer or settle real assets.

## MaleCNS v1.0 measured anatomy

- Google announcement: https://research.google/blog/a-connectomics-milestone-mapping-the-complete-male-fruit-fly-brain/
- Official data: https://male-cns.janelia.org/download/
- Paper: https://doi.org/10.1016/j.cell.2026.08.015
- License: CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/
- Attribution: FlyEM (HHMI Janelia), University of Cambridge Department of Zoology, MRC Laboratory of Molecular Biology, and Google Research.

Adaptation: all 165,122 released neurons annotated `Traced` and all 25,563,197 directed edges between them are retained. The integer edge counts total 124,025,046 synaptic contacts. No minimum pair weight, random sampling or topology pruning was used. Untraced segments, glia and other annotation statuses are excluded; this cohort is not identical to the paper's approximately 166,700-cell catalogue. Original body IDs, types, transmitter predictions and confidence remain in the accompanying catalogue.

The original unfiltered file includes incomplete segment objects and therefore has different totals. Source file URLs and SHA256 checksums, exact array layouts, cohort criteria and cell-group indices are in [metadata.json](malecns/metadata.json). The [neuron catalogue](malecns/neurons.json.gz) retains the original annotations for included cells.

## What actually runs

Each of six flies has independent membrane/current/spike state for every retained neuron. The sparse measured graph is shared by reference. A Web Worker runs a dimensionless LIF model every 100 ms of game time. Each target's synapse counts normalize its inputs; outgoing edges transmit spikes. Visual R1–R6/R8 neurons receive engineered track stimuli; computed descending-neuron potentials and firing rates contribute to racing speed. Source transmitter predictions are mapped to assumed receptor signs: acetylcholine positive, GABA/glutamate/histamine negative, unspecified or modulatory transmitters zero fast-current contribution. These are model assumptions, not directly measured physiological weights.

The wiring is real data. Voltage dynamics, time mapping, gain, leak, reset, intrinsic excitability, sensory encoding, sign convention and movement decoding are engineered approximations. This is not a validated complete living-brain emulation and does not run Google's or Eon Systems' behavioral simulator. A fixed random seed reproduces the game; connectivity ablation changes the executed finish times. Racing size, speed, lane placement and animation are game-scale choices.

## Constructed 3D scenery

The stadium oval, turf, gravel, rails, gate doors, terraces, seats, spectators, roof, signs, trees and lighting are procedural meshes. The fly models use geometry for compound eyes, bristles, abdomen, antennae, two wings and six articulated legs. Runtime thumbnails are renders of those same models. Sign lettering is drawn to small in-world text textures. There is no photographic/raster racetrack backdrop and no fly sprite image. Three.js 0.186.0 is MIT licensed; the notice is in `vendor/THREE-LICENSE.txt`.

## Financial scope

No real-asset custody, wagering contract, server-authoritative result, secure outcome attestation or settlement is implemented. Wallet integration only reads accounts/network/balance and offers a network switch after the user clicks it. Client code and results can be modified and must not be used to settle real assets.

## Pixel brand mark

`brand/pixel-fly.png` is an original AI-generated transparent pixel-art fly mark created for FlyMarket. This earlier interface mark is retained as a legacy asset and is no longer the active logo.

## Current FlyMarket logo

`brand/flymarket-blue.png` is the exact user-supplied 1254 × 1254 PNG, copied without edits. It is used for the header, loading identity and favicon. The interface background samples its blue (#1A52FD), with white and navy controls. It is not used as the stadium background or a racing model; the stadium remains constructed 3D geometry.