 Indexical contents (spatial, first-personal and temporal) require modification or further specification of all three views about the contents of experience mentioned so far. In the case of possible-world contents, one way to have such an axis is to appeal to centered possible worlds: worlds centered on a subject, and possibly also a time and/or a location. The further features of the worlds can then be specified in relation to the point of origin: in the example, coming from the left of the center (or being such-and-such distance and direction from it). (See discussion of Peacocke’s ‘positioned scenarios’ in his 1992 ch. 3 and below.)