 Despite their different interpretations of the concept of momentariness, the early Buddhist schools all derived this concept from the analysis of impermanence in terms of the dynamics of dharmas qua physical and mental events. The equation of a moment with the duration of these transient events as extremely short occurrences—even the shortest conceivable—led to the direct determination of the moment in terms of these occurrences. Yet the doctrine of momentariness spawned a host of problems for the Buddhist schools, particularly with regard to the status of the endurance moment and to the explanation of continuity and conditioning interaction among the dharmas (see section 5 below). If dharmas go through an endurance phase or exist as real entities within the span of any given moment, how can they be momentary? And if experience is an array of strictly momentary dharmas, how can continuity and causal conditioning be possible?