 New logical games also arise naturally within the dynamics of information, knowledge or belief as triggered by the process of game play (cf.  Section 4).  In particular, information update suggests conversation games between participants with similar or different goals. These games may be cooperative, with players aiming to pool their information, thereby turning distributed knowledge into common knowledge (Meyer &amp; van der Hoek 1995). But they can also be competitive, say, when players strive to be the first to know whether some relevant proposition holds. Mixtures between both modes also occur, for instance with some players aiming to communicate a fact that outsiders should not learn about (van Ditmarsch 2003).