DTM.2:4.2 - Recover exposure and the conditions of uptake

Trace how a recipient encounters an actionable variant. A contact matters only through what it makes available. Identify any condition whose absence prevents the receiving event: a needed capability, usable tool, compatible interface, time or authority, for example.

For one period, let E be relevant exposure, G the required opportunity or support, and U the receiving event. When U requires E and G, the chain rule gives:

P(U) = P(E) × P(G | E) × P(U | E,G).

The conditional terms retain dependence; multiplying three unrelated marginal probabilities would assume more. If use can begin through independent invention or another channel, add that event path rather than treating all use as transmission from the selected source.

A brief account such as “the group saw the method but cannot run the required tool” may finish this step. Estimate numerical terms only when they change the next use.