If nothing can happen except through dialogue, and the dialogue lies or dies, then nothing happens.
certainty:
moments of high artifice in speech, a spoken prose, a recital - not always, can people -do people- produce speech spontaneously - practiced by shy people and not shy people alike, is the reliance on formulas - maybe use speech as a way to distance from situations - if, by impossible (!) error, speech is thrust off-piste maybe use a lie - a formal limitation if the composition, full content is dialogue - see Plato, Richardson
break on formal limitations and the possibility of a dead dialogue:
Erasmus - Pamphilus and Maria are unable to kiss because they need their mouths to keep the dialogue going
uncertainty and progress of decayed form:
speech - a "tool" that is inferior to writing - lying is corrosive, corrosion is art (?)))
‘Your property is valueless’
“everybody says” bears deep knowledge, because no one has to think about "it"
In D’Alembert’s Dream, when Mademoiselle de l’Espinasse says something so brilliant that it makes Dr. Bordeu want to kiss her, the kiss becomes a huge technical problem requiring at least three speakers. First Bordeu asks to kiss her, then de l’Espinasse says okay, and then d’Alembert narrates it while it’s happening, and the other speakers comment on it afterwards.
This - by Diderot - and Wilde's Decay of Lying