The present, in the strict logical sense of the term, does not encompass more than the absolute "unextendedness" of a moment. It is as little time as the point is space. It denotes merely the collision of past and future, which two alone make up time of any magnitude, that is, real time. But since the one is no longer, and the other not yet, reality adheres to the present alone. This means that reality is not at all something temporal.

DEFINE: Clarifies that 'the present' is a zero-extent boundary between past and future, not a duration.

DEFINE: Clarifies that the present has no duration — it is the dimensionless boundary between past and future, analogous to a point in space. Reality, then, is not temporal at all.

Georg Simmel, on individuality and social…, loc. 802