  Both ‘C’ and ‘D’ here denote the actual ‘live’ experiencings of tones C and D, rather than memory-images or any other form of after-the-event representation. The specious present they jointly compose is a (short-ish) period of continuous experiencing, spread through ordinary time. Although D occurs later than C, it is also experienced as following on from C (as indicated by the small block-arrows connecting the two). Accordingly, what we have here is a genuine experience of succession, and no mere succession of experiences. Since the tones are experienced together, albeit in succession, the two are phenomenally unified, or diachronically co-conscious – as indicated by the lower double-headed arrow. The limits of the specious present are determined by the temporal extent of the diachronic co-consciousness relationship.