Each of the 64 colonies gets four random 0–1 trait scores. The sliders set relative weights w (auto-normalised to sum to 1) that combine them into one selection index: S = wₚ·p + w𝓰·g + w𝓌·w + wₕ·h The top ~20% by S turn gold — the colonies a real programme would choose as breeders for instrumental insemination (their lines flow into the flask at the station). Advancing a generation moves every colony's traits toward the breeders' average by a fixed heritability (h²=0.35, the breeder's equation ΔG = h²·S) plus small random mutation, then banks the top colony's genetics as a frozen vial in the gene bank — a simple model of long-term genetic conservation against loss of a valuable line.