  As this diagram makes illustrates, specious presents can be more closely packed than sequence of tones depicted in Figure 11. In this new example, each double-headed line represents a distinct specious present, each differing from its immediate neighbours by a just-noticeable  difference.[17] Although these specious presents overlap to a very significant degree, given that the overlap takes the form of a sharing of common parts, there is no phenomenologically unrealistic repetitions: the greater the extent to which two specious presents overlap, the greater the number of phases they share. What we have here is what is needed: a temporally extended stretch of consciousness that is phenomenally continuous, and which includes all the experienced transitions which are experienced. Or so the Overlap theorists maintain.