The Keyhole Theory investigates conditions in which perception, cognition and internal organization appear to cross zones of transition before they become explicit, judged or reportable. Its starting points include reference cases and borderline cases in which sensation, form, memory, recognition, absence, excess or cognitive reorganization suggest that something may be structured before it becomes fully conscious or discursive.
The central hypothesis is not to replace judgment, validation or criticism, but to study a layer prior to explicit cognition: a regime in which latent patterns may be sensed, aligned, constrained or converted into operational form. This is the sense of the formulation: sensor, not censor.