 “Scorekeeping” approaches to language use typically construe a contribution to a conversation as a Proposition: If that “assertion” is accepted, then the score is updated by having the Proposition entered into common ground. In this spirit, MacFarlane (2011) considers an account of the speech act of assertion in terms an utterance’s capacity to update conversational score. Such an approach will, however, face a difficulty in explaining how two speech acts with the same content, such as an assertion that the Milky Way contains a black hole, and a conjecture that it does, will make different conversational contributions. An enrichment of the scorekeeping model would include sensitivity to differences such as these.