conversation to deteriorate or eventually to end. Contributions to a conversation are responses to what has previously been said.

Conversations may be the optimal form of communication, depending on the participants' intended ends. Conversations may be ideal when, for example, each party desires a relatively equal exchange of information, or when the parties desire to build social ties. On the other hand, if permanency or the ability to review such information is important, written communication may be ideal. Or if time-efficient communication is most important, a speech may be preferable.