EXPERIMENT 01 / SPATIAL ORGANIZATION
A quorum is local.
PAUSEDt = 0.0 model units
01
Microbial arena
THREE COLONIESSEALED CHAMBER
Signal 0 ≥ 2 Expression: dim → amber
02
Environment & cells
Changing count starts a new run.
Smaller depth → less volume. Starts a new run.
Illustrative values in model units.
03
Population readout
Mean signal0.00concentration units
Mean expression0%continuous response
Above 50% expression0%display cutoff only
04
Cell inspector
FOLLOWING
Cell 001
Producer + receiver0.00
0%
0%
Signal arrives first. Expression follows with a response delay.
05
Before you press Run
01 / 05
Where will expression rise first?
Choose a prediction, then watch the signal field.
∂A/∂t = D∇²A − ∇·(uA) + S − kA
H(A) = Aⁿ / (Kⁿ + Aⁿ)
dy/dt = (H(A) − y) / τ
dy/dt = (H(A) − y) / τ
Local signal A drives promoter activity H. Expression y approaches H over response time τ.
Secretion = q(1 + βy). Phenomenological feedback; memory is not guaranteed.
Fixed cell differences: Kᵢ = K exp(σzᵢ), zᵢ ∈ [−1, 1]. Not stochastic gene expression.
Quorum Lab version 0.8.0 beta. Made with GPT-6 Astra. Validated by Fable 5.2. This is a beta version and can contain errors.