Can Asserting that p Improve the Speaker's Epistemic Position (And Is That a Good Thing)?

In this paper I argue that there are cases in which a speaker S's observation of the fact that her assertion that p is accepted by another person enhances the strength of S's own epistemic position with respect to p, as compared to S's strength of epistemic position with respect to p prior to having made the assertion. I conclude by noting that the sorts of consideration that underwrite this (happy) possibility may go some distance towards explaining several (unhappy) aspects of our group life as epistemic subjects—in particular, groupthink and group polarization.