Drake–Loeb Interactive Simulator

A visual sandbox to combine the Drake Equation with the Loeb Scale (artifact channel)
Mapping: Sigmoid Years: 10 ISO λ/yr: 4

Parameters

Drake (biological channel)

We use a Beta(a,b) prior for fc with a = k·fc, b = k·(1−fc). ISO evidence will update this prior.

Loeb (artifact channel)

PLoeb(level) = 1 / (1 + e^{-α·(level − L0)}) or level/10 for linear.

Loeb level distribution (percent per level, must sum ≈ 100)

You can bias toward lower levels (natural) or increase 4+ to explore technosignature-heavy scenarios.

Results

Nbio (prior fc)

Biological channel with prior fc

Nbio (posterior fc)

Updated with ISO evidence via Beta posterior

Nartifact (per year)

Artifact channel = ∑ PLoeb / years

Ntotal (prior)

Nbio(prior) + Nartifact

Ntotal (posterior)

Nbio(posterior) + Nartifact

fc posterior (mean)

Beta(a0+s, b0+n−s), with s=∑PLoeb

Last 12 ISO events

#t (years)Loeb levelPLoeb