This page is an illustrative pressure model, not a structural validation of an aircraft window. Its authored cabin rule holds pressure at eleven point eight PSI above eight thousand feet. Raising the altitude input from thirty five thousand to forty three thousand feet lowers modeled outside pressure from three point four six to two point three three PSI. Subtract outside pressure from cabin pressure and the differential grows from eight point three four to nine point four seven. The colored lengths use the same pressure scale. At thirty five thousand feet, the same eight point three four PSI is routed by three code branches. Open hole and intact outer pane set cavity pressure equal to cabin pressure: the outer pane receives the full modeled difference. Blocking the hole sets cavity pressure to the arithmetic midpoint, seven point six three PSI, splitting load four point one seven and four point one seven. Fracturing the outer pane takes branch priority, sets cavity pressure to outside pressure, and assigns all eight point three four to the middle pane. These instantaneous assignments are the page model, not a dynamic stress solver. The particle flow and frost are frame-driven visual illustrations. They do not calculate time-resolved moisture transport or prove material strength. Use altitude, hole and fracture controls to inspect the pressure assignments. Reset restores the original cruise inputs, and the telemetry JSON records the selected state and numeric loads. Read those exported assumptions alongside the diagram.