Principlev1
Treat your window of tolerance as a daily variable state
Treat your window of tolerance as a daily variable state that narrows under sleep deprivation, stress load, and resource depletion rather than a fixed trait.
Why This Is a Principle
Grounds in Directed Attention as Depletable Resource (cognitive resources deplete), Ultradian and Circadian Cognitive Rhythms (ultradian/circadian capacity cycles), Glucose-Cognition Dependency Threshold (glucose affects cognition), and Scarcity of any resource consumes cognitive bandwidth that (scarcity consumes bandwidth). The principle: reassess your effective window daily based on current physiological state rather than assuming yesterday's thresholds apply today.