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A timepoint is a point in real, historical time (on earth). It is independent of observer and context. A timepoint is not a measurement of time, nor is it a specification of time. It is the point in time. The timepoints at which events occur can be known with various degrees of precision and approximation, but conceptually timepoints are point-like and not interval-like. That is, it doesn't make sense to talk about what happens during a timepoint, or how long the timepoint lasts.
Subclass-Of: Biblio-thing