# Exposure Card: Field Geometry And Stable Control Basin

## Possibility

Structured field geometry can create a stable, recoverable control basin that a
matched unstructured or lower-handle intervention cannot reach under the same
declared actuation and resource envelope.

## Public Question

Does a predeclared geometry create a repeatable basin of successful control
under delay, bandwidth, estimator noise, and perturbation stress?

## Frozen Comparison

- Same target and initial-condition family
- Same declared actuator and source envelope
- Structured geometry versus matched incumbent geometry/control
- Fixed delay and bandwidth model
- Held-out initial conditions and perturbations
- Complete timing, calibration, synchronization, and support ledger

## Measurements

- basin occupancy and recovery probability;
- response margin under perturbation;
- latency and bandwidth sensitivity;
- estimator and finite-shot uncertainty;
- resource-front position across energy and support costs.

## Decisive Branches

- **Persists:** the stable basin survives held-out conditions, matched resources,
  and geometry-destroying controls.
- **Closes ordinarily:** the apparent basin follows hidden gain, source power,
  post-selection, calibration, or controller complexity.
- **Narrow:** geometry helps only in a bounded operating region that can be
  stated and retested.

## Next Artifact

A public-safe basin manifest containing the frozen target, comparison class,
resource ledger, held-out conditions, and route result.

