 A third systematic attempt to specify something like a modal fiction is worth noting here. Theodore Sider defends an “ersatz pluriverse” view in Sider 2002, according to which possible worlds talk should be understood as talk about what is true according to what is true according to a pluriverse sentence that Sider specifies. Sider constructs this sentence, that simultaneously describes all the possible worlds and their relationships, using a range of constraints including the constraint that de dicto necessity claims that are in fact true are true of all the worlds of the described pluriverse. Sider distinguishes his view from Rosen-style modal fictionalism, particularly because Sider thinks that the “according to” he needs should not be understood as the sort of “according to the fiction” operator he takes Rosen’s to be. So while Sider’s view probably should not be classed as a variety of modal fictionalism, it is a close cousin. Berit Brogaard argues that Sider’s view is inferior to her preferred form of modal fictionalism in Brogaard 2006. 