Definition
The design stance that a system should improve its representation of people and preserve their ability to challenge it at the same time, because the two capacities compound rather than substitute for each other. The error it opposes is closure without remainder: treating the model boundary as the boundary of relevance, so that every mismatch between the model and the person reads as user error, anomalous input, or noise.
It matters because a system that is incomplete and open to challenge is safer than one that is complete and final. The complete one has nowhere for its errors to arrive; the incomplete one constitutionalizes the failure path instead of optimizing it away, and the challenge route is the mechanism by which the representation's errors are discovered at all.
Tests that show it is in place
- Better model performance is paired with preserved or widened challenge routes, not narrowed ones.
- The system can state what its representation does not cover.
- A mismatch between the model and the person can enter the system as an event with state-changing force.
Evidence to keep
- Artifact: A stated coverage boundary: what the model represents, what it does not, and where challenges arrive.
- Behavior: A representation improvement shipped without narrowing any challenge route.
- Metric: Challenge route reach after each representation upgrade, compared with before.
References
- The model of a person is not the person · Theory
- Closure without remainder · Term