B. shows that the study of interruptions may be one way of approaching certain issues of discourse analysis such as certain issues of interpretation without using a particular linguistic, semantic or rhetorical methodology as in various existing forms of the structural analysis of discourse. The question of interruption in discourse is said not to be one of recognition, but of a kind of interpretation arising from a background of possibilities evolving at that moment in the discourse as the participants work out a direction of thematic development and set forth a qualitatively shared world.