DTM.4:4.1 - Preserve the law and the surrounding conditions

Recover the transmission and uptake construction from DTM.2 and the relevant feedback from DTM.3. Identify the variables being varied and those held fixed, the feasible state region, units of time and the environmental conditions. Keep the counted event and eligible population unchanged across that handoff. A per-recipient probability or hazard, a repeatable-event count and a population flow are different inputs; convert them using the stated receiving event before analyzing regimes.

State the practical question before solving: establishment from a small introduction, persistence of an existing variant, coexistence, reduction to a desired range, or return after a temporary change. “What happens?” is too broad when those questions depend on different initial conditions.

If a capability, permission or resource required for uptake is absent, preserve that absence in the law. A favorable comparison is not itself an event.