FLOWFLY_

A FRUIT FLY TIMES DIVIDEND HARVESTS · PAPER

SGOV · +0.0958% · Jul 08, 20260H / 72H

WAIT

gate closed · approach 0.991 vs avoid 1.001

KC 100/2000OUT -0.010DOPAMINE quietSYNAPSES CHANGED 0

SCOREBOARD · LIVE

The fly against rules that need no brain.

Every episode is a real payout from the chain. The fly picks a moment; three rules pick theirs. Net USDG per $5,000 position after the 0.10% fee, the pool fee, price impact and gas. Hindsight is the best moment in the window, known only afterwards: nobody beats it, it is the ceiling.

$0.00

Fly

$0.00

Instant

$0.00

Fixed · 24h later

$0.00

Hindsight · ceiling

No episodes settled yet. The seed is fixed, so every visitor sees the same run.

PayoutStepFly harvested atFlyInstantFixedHindsightRefused
running…

EXPERIMENT 02 · A BRAIN WITH ONE JOB

A fruit fly decides when to collect.

Earlier experiments put an insect brain on a trading account, then swapped it for a fish and let it trade. Both were honest that a brain has no edge on a price. So this one is not asked to predict anything. It gets the one question a fly's brain evolved to answer: is the reward in front of me worth going for now? The reward is real: a dividend the issuer has already folded into a token. The fly only picks the moment to take it.

21

real payouts replayed

2,000

Kenyon cells

2

output neurons · approach / avoid

0

transactions signed · ever

HOW IT WORKS

See. Fire. Decide. Refuse.

STEP 1

SEE

The 72 hours after a payout become a picture: the multiplier step, the price path, the pool depth and the gas. Fifty projection neurons read it. The fly never sees a number.

STEP 2

FIRE

2,000 Kenyon cells, each wired at random to 7 projection neurons before any payout. Inhibition keeps 5% of them active: the sparse code a real mushroom body uses.

STEP 3

DECIDE

Two output neurons add up the active cells through plastic synapses: approach and avoid. When approach wins, the fly proposes HARVEST. Otherwise it waits another hour.

STEP 4

REFUSE

A guard checks gas, price impact and whether this payout was already taken. It can only say no. It can never say “harvest that instead”.

Then the fly learns the only way a fly can. When its harvest beats the instant rule, reward dopamine cells fire and the avoid-side synapses of the cells that were active are weakened. When it loses, punishment cells weaken the approach side instead. That is the dopamine-gated depression described for the mushroom body in the literature, reduced to its bookkeeping.

THE LINEAGE

Three brains, one guard.

01 · The fly

A fly connectome on a trading account, honest that a steady bias in the network becomes a steady bias in the orders. The guard and the plasticity rule come from this line of work.

02 · The zebrafish

Whole-brain activity from a larval zebrafish with a fixed readout and the same guard. It kept proposing sells it had no inventory for, and that was reported as a result.

03 · FlowFly

Back to the fly, with a different question: not which way the price will go, but take the reward now or wait. A mushroom body is a reward-timing circuit, so the biology and the job finally match, and the score is plain arithmetic.

HONESTY BOX

What this is, and is not.

WHAT IS REAL

  • Every episode is a real dividend bump read from a stock token contract on Robinhood Chain: the token, the step and its date.
  • Pool depth and fee tier are the registry's current values, not the values on the payout date.
  • The circuit shape and cell counts follow the fruit-fly literature: about 2,000 Kenyon cells, 7 inputs each, 5% active, two outputs.
  • The scoring is arithmetic anyone can redo: increment × price × (1 − impact) − fees − gas, at the hour each rule chose.

WHAT IS NOT

  • Not a connectome and not a spiking simulation. The wiring is random with literature-shaped statistics, seeded to be the same for everyone.
  • The 72 hours after each payout are simulated from a fixed seed. The payout is real; the price path after it is not a forecast.
  • No transaction is signed. The fly has no wallet, no keys and no way to get them.
  • No edge is claimed. If the fly loses to the instant rule, the scoreboard says so. Not advice.

FlowFly is an experiment inside YieldFlow, the dividend layer for tokenized stocks on Robinhood Chain. The harvest it simulates is the one the vaults will perform for real, signed by your own wallet, once they are deployed.