This document discusses using a Medical Data Recorder (MDR) system to improve patient safety and organizational learning in hospitals. It notes that up to 8% of hospital admissions experience care-related harm, with around 1/3 being potentially preventable. Aviation safety practices like checklists, crew resource management, and a focus on process transparency and failure analysis could help hospitals achieve 100x lower error rates. An MDR system could integrate video, sensor, and tag data to provide an objective record of surgical procedures and other care activities to support analysis without individual blame. This would help hospitals shift culture from focusing on individual heroes to organizational learning and continuous safety improvement.