This paper argues that evolution is not a biological mechanism but a universal operator: a substrate‑independent process that transforms undifferentiated possibility into coherent, self‑maintaining form. The operator has a stable, domain‑invariant structure—variation, selection, and retention—and this structure appears across physical, chemical, biological, cognitive, cultural, and technological systems. By treating evolution as a formal operator rather than a biological process, the paper dissolves the traditional organism–environment dualism. Environments are shown to be products of prior evolutionary operations, not external containers. This reframing reveals evolution and development as different constraint regimes of the same generative mechanism: evolution explores under loose constraints, while development executes under tight constraints. The paper argues that coherence is the invariant outcome of the operator. Systems persist only by satisfying the constraints of their domain, and evolution is the mechanism that discovers and stabilizes those constraints. This provides a unified account of how structure emerges across scales and explains why biological evolution is a special case of a more general principle.