Duration (philosophy)

Duration is a philosophical concept that suggests that time is not a straight line but rather a continuous flow of moments. This means that instead of thinking of time as something that progresses from one moment to the next, it is better to think of it like a river with all of the moments existing at the same time. Put another way, duration suggests that everything that has ever happened is happening at the same time in the present moment, but we only experience one point or moment at a time.