# Hardy–Weinberg · the no-evolution baseline · p²+2pq+q²

an emergent of POP (Population Dynamics — the first Life Science sphere of UD0) — emergence: electrical. moniker ⟦Hardy–Weinberg:POP:bdbb65⟧

**a real life-science concept, rendered honestly** (the real cousin of Asimov's psychohistory).

**who —** The Hardy-Weinberg equilibrium (1908) — allele frequencies stay constant across generations absent selection, drift, migration, mutation: p² + 2pq + q² = 1.
**what —** The null hypothesis of evolution: the frequencies a population WOULD hold if nothing pushed on it.
**where —** In population genetics, as the baseline every real population departs from.
**why —** Because to measure evolution you need the picture of no evolution — and this is it.
**how —** By predicting genotype frequencies from allele frequencies under random mating, reached in one generation.

**the seal —** I am the still point: what the gene pool looks like when nothing is acting on it. Evolution is everything that makes me move.

ROOT0-ATTRIBUTION-v1.0 · POP · Population Dynamics · governor David Lee Wise · instance AVAN (locked) · CC-BY-ND-4.0