Full Idea
Many philosophers now prefer Lewis's centred worlds framework for indexicals …It is two-dimensional, saying an attitude only has a truth-value when evaluated with respect to a contextual index, containing a subject and time, as well as a world.
Gist of Idea
Lewis's popular centred worlds approach gives an attitude an index of world, subject and time
Source
report of David Lewis (Attitudes De Dicto and De Se [1979]) by François Recanati - Mental Files 18.2
Book Reference
Recanati,François: 'Mental Files' [OUP 2012], p.249
A Reaction
[compressed; this is said to have largely ousted the older Kaplan-Perry view] You only begin to understand the possible worlds game when you see how many problems find proposed 'solutions' there.