“Actuality is when the lighthouse is dark between flashes: it is the instant between the ticks of the watch: it is a void interval slipping forever through time: the rupture between past and future: the gap at the poles of the revolving magnetic field, infinitesimally small but ultimately real. It is the interchronic pause when nothing is happening. It is the void between events.”

– george kubler, THE SHAPE OF TIME, 1962
(from the press release of discovering absence, sounds interesting, maybe you go?)