With Jian Gang Ngui
CLS 56.
We discuss the effect of the SE sentence-final discourse particlel lo, which can be used to "agree to disagree" (Farkas & Bruce 2010), but also for a variety of other discourse effects. We propose aunified account of these effects, which will show that "agreeing to disagree" is a special case of amore general phenomenon in which interlocutors attempt to move to a previous discourse state by ignoring the public effects of proposed updates.