The changing now of experience, when regarded as identical to the specious present is seen to possess a certain variable breadth, (cf. Pynchon's "delta-t") and most importantly a rich internal structure. Simply stated, there are components which lean forward and other components that lean backwards. These inseparable parts of phenomenal time are also highly variable, but their essential inter-relations are invariant. In this sense temporality is constant even as time flies. This insight can be extended to engulf all of phenomenal time, so that all of the past and all of the future are seen to have no other basis than the now. A version of this is the apparent virtuality paradox that the possibility that entire universe was created a second ago, complete with all its past history etc. can't be decisively ruled out. This structure of temporality is a concomitant of the self, but any equation of the 'I' with the 'Now' is not called for. The invariance of temporality does not have a strong metaphysical dimension, and in this sense is quite different to the stationary now, or nunc stans. In so far as this latter enters into experience it points to a further dimension, in which it can be understood that the 'I' and the 'Now' are the one substance.