 Since Hume ([1739] 1962: 252) and Rosenthal (2003) deny that we have such unified consciousness of self and Dennett (1991, 1992) says at minimum that we have much less of it than we think, it is perhaps pertinent to say again that in this section we are merely trying to say what the various forms of unity would be like if they exist. Whether they do exist is the topic of  Section 3.