A brain with continuity
Membrane potentials evolve. Synaptic currents decay. Neurons fire and recover. Spatial tuning and sensory cues shape the 128 filtered channels that enter the policy.
Inspect the circuit ↑SPECIMEN 001RATTUS NORVEGICUS · SYNTHETIC
A SMALL NERVOUS SYSTEM. A VERY LARGE WORLD.
RATBRAIN.
A simulated rat, loose on the web.
Spiking. Exploring. Learning slowly.
CA: TBA
Enter the observation room ↓ASSEMBLING DIGITAL SPECIMEN
NEURAL SPECIMEN / 01
01 / OBSERVATION ROOM
A life in progress.
An autonomous, ongoing simulation. You're here to observe.
READ-ONLY OBSERVATORYFollow the evidence ↓
WAITING FOR CONNECTION/PUBLIC WEB
NO SAMPLES YETThe room is ready.
Connecting to the autonomous session.ACTUAL BROWSER FEED
MODEL INPUT: LINK BOXES, NOT PIXELS
CURRENT ACTION—
X — / Y —HEADING —
AWAITING MODELSESSION UPTIME00:00
MOTOR DECISIONS—
PAGES THIS SESSION—
LINKS FOLLOWED—
SUCCESSFUL SCROLLS—
RECOVERIES—
A motor decision may turn or rest; it does not necessarily open a page. Recoveries are automatic navigation resets.
02 / BRAIN & BEHAVIOR
Every movement begins here.
Persistent neurons. Real spikes. A decision you can trace—and see which channels shaped it.
— NEURAL TIME
— INTEGRATION
— COMPUTE / WINDOW
— NEURAL : WALL TIME
— INTEGRATION
— COMPUTE / WINDOW
— NEURAL : WALL TIME
A nervous system in motion
ATLAS SHAPE / SYNTHETIC UNITSLOADING RAT BRAIN ANATOMY
RECORDED SPIKES · SLOWED FOR OBSERVATION
CHOSEN-ACTION SCORE DECOMPOSITIONAwaiting a decision
● RAISES ACTION SCORE● LOWERS ACTION SCORE
Absolute share = |group contribution| / Σ|group contributions|, excluding bias, for this chosen action. It describes score magnitude, not causal influence. Each signed contribution is filtered spike activity × learned policy weight.
The observed run is sensory-dominated. Its engineered priors weight 16 sensory channels; 112 spatial channels start at zero actor weight and can change through learning. The live shares above show the current balance.
DRAG TO ORBIT · SCROLL TO MAGNIFY
— NEURONS— SYNAPSES— ABS RECURRENT / EXTERNAL DRIVE
Waiting for the live neuron sample. Rat anatomy: Waxholm Space atlas. Neuron positions illustrate functional populations; they are not measured cell locations.
The last neural moment
— ms0 msTIME → / 256 SAMPLED NEURONS—
PLACE · 64 CHANNELSGRID · 36HEAD DIRECTION · 12SENSORY · 16
MEMBRANE—
SPIKES / WINDOW—
THRESHOLD—
Inspection changes only your view. The simulation continues independently.
01 · OBSERVATIONAwaiting a pageDOM link geometry + luminance and contrast
02 · NEURAL STATEAwaiting spikesVoltage → threshold → filtered spikes
03 · POLICYAwaiting a decisionSampled from the learned distribution
04 · BODY & BROWSERAwaiting an outcomeMovement and navigation are recorded
Before the next move
ACTION PROBABILITYVALUE · RECENT UPDATES—
TD ERROR · RECENT UPDATES—
MODEL FOLLOWS / 100 · SESSION—
LEARNING UPDATES · LIFETIME—
Latest Σ|Δw|—Reward received—
TD updates change the policy weights. The follow-rate curve is session-only, calculated over up to the latest 100 decisions; it is an outcome measure, not proof that learning improved navigation.
Field notes
LIVE EVENT RECORDNo observations recorded yet.
MODEL DECISIONBROWSER ACTIONSUPERVISOR
LINK SELECTION · HEURISTIC · NON-NEURAL
Heuristic link selection
CURRENT PAGE—
Awaiting a recorded link decision.
PAGE EXCERPT · SHOWN TO YOU, NOT TO THE MODEL
SELECTED LINK—
SCORE —DISTANCE AT SELECTION —NOVELTY —PROBABILITY —
MOTOR OUTPUT—
This hand-coded rule ranks allowed DOM links using visit counts, page position, label length, and distance, then makes a reproducible draw. It is outside the neural model and does not read or understand the excerpt.
THE WORLD IT REMEMBERS
Places leave a trace.
Its first encounters will appear here.
This is a persistent SQLite visit-count table that changes link scores. It stores page URLs, titles, timestamps, and counts; it does not store or understand page content.
03 / THE RECORD
Don't take our word for it.
Inspect the live decision record, current chain head, and public methods.
Read methods & evidence ↗Download behavior baselines ↗SOURCE PRIVATE DURING DEVELOPMENT · PUBLIC GITHUB PLANNED
SELF-ATTESTED RECORD
The chain head and terminal-hash ledger are published by the same operator. They can expose later changes to a saved record, but they do not independently prove when the run occurred.
RECORDING SEGMENTAwaiting first record
— recorded decisions
SHA-256 CHAIN HEAD
—Each decision commits to the record before it.
Inspect the latest live decision record
Loading the recorded observation, neural output, and action outcome…
What the current record establishes
The live record binds each saved observation, neural output, chosen action, and browser outcome to the prior decision with SHA-256. The public terminal-hash ledger preserves each segment's final head.
This is operator-published evidence, not independent attestation or biological validation. Source release and public replay tooling are planned for a later GitHub publication.
04 / THE FOUNDATION
A nervous system, made observable.
RATBRAIN brings rat-inspired spatial encodings, a persistent spiking circuit, and online weight updates into one observable simulated animal. Filtered spikes feed a policy that drives real browser actions. Its state survives the next decision—and the next session.
Experience changes its weights
New destinations produce reward; TD updates change action and value weights. The session outcome curve shows whether model-selected follows rise rather than assuming improvement.
Inspect the updates ↑An experiment with a record
Inputs, spikes, choices, and outcomes are recorded together. Inspect the live record and its self-attested terminal hashes; public source and replay tooling are planned.
Examine the record ↑MODEL SCOPE
A reduced, rat-inspired spiking circuit—not a whole-brain reconstruction. Neuron counts and physical units describe the simulation; anatomy comes from a rat atlas; placement of model units is illustrative. The methods specify each assumption.