  The ‘duration-blocks’ we have been dealing with latterly are unified episodes of experiencing, conceived in the Sprigge-Bradley manner, i.e. as collections of phenomenal contents that are also phenomenally unified (or experienced together). The Overlap Model can also be developed in the context of an awareness-content conception of experience, of the sort which Broad adopted. The most straightforward way of implementing this ‘awareness-overlap’ model is illustrated in Figure 13. Here A1, A2 and A3 are temporally extended acts of awareness, apprehending contents C-D, D-E and E-F respectively. Each of these acts generates a single specious present. We further suppose that these acts overlap by sharing common parts, i.e., that the portion of A1 which apprehends D is numerically identical with the portion of A2 which apprehends D, and likewise for the portions of A2 and A3 which apprehend E. Once again we have a situation in which continuous streams of consciousness are composed of overlapping specious presents.