{"id":"observation-that-changes-state","title":"Reading that changes what is stored","regions":["physical-systems","representation"],"question":"What is computation when reading changes the stored state?","formulation":"Reading, writing, and transition are explored as coupled operations. A repair path may disturb what it reads while trying to restore another disturbance.","representations":[{"name":"Separate read and write modes","affords":"Makes the intended observation intervention explicit.","loses":"Separation must be physically established, not assumed.","epistemic_kind":"reconstruction"},{"name":"Observation as a state transition","affords":"Includes disturbance in the model.","loses":"Recovering an earlier state requires more than observing the current one.","epistemic_kind":"reconstruction"}],"tension":"An inspection path may alter the very history it was meant to recover.","challenge":"Which state variables and intervention costs must be included for a claim of reversibility?","development":"independent_branch","epistemic_kind":"reconstruction","evidence":["basis-observation-that-changes-state"],"next_move":{"text":"Write a finite state-transition model with explicit read disturbance and test whether a proposed repair returns the full state.","epistemic_kind":"model_proposed"},"open_questions":["What is computation when reading changes the stored state?","Which state variables and intervention costs must be included for a claim of reversibility?"],"formal_status":"open_problem","version":1,"content_hash":"b8b30f4ac6d3656b3b78bb427a1e6bacb8b89585036b9a796c5a82826605e497"}