  Continuity is also problematic from a Retentional perspective. As we have seen, the Modest Continuity Thesis is easily accommodated. All the latter requires is that there be no gaps in a typical stream of consciousness, and by stipulating that retentional specious presents form dense, gap-free successions, this requirement is easily met. Strong Continuity requires a good deal more: real experiential or phenomenal connections between neighbouring stream-phases. This is harder by far to achieve within a Retentional framework. What is needed is a credible account of how neighbouring specious presents are related to one another which permits phenomenal continuity to run without impediment between specious presents, as well as within them – or so proponents of Strong Continuity will maintain. Yet the defining characteristic of the Retentional approach is the confinement of phenomenal unity to within momentary states of consciousness, which is tantamount to the denial that phenomenal continuity can connect earlier and later stream-phases, in the manner permitted by Extensional approaches.