A discourse, usually in formal style, between theors. “To be in Dialog” is to participate in such a discussion extemporaneously. The term may also apply to a written record of a historical Dialog; such documents are the cornerstone of the mathic literary tradition and are studied, re-enacted, and memorized by fids. In the classic format, a Dialog involves two principals and some number of onlookers who participate sporadically. Another common format is the Triangular, featuring a savant, an ordinary person who seeks knowledge, and an imbecile. There are countless other classifications, including the suvinian, the Periklynian, and the peregrin.