ABSTRACT
In many texts it appears that the author has assumed the reader/listener can complete or extend the text and has made such contributions on the part of the processor necessary for a sensible interpretation. Fiction writers, for example, seldom describe every move a character makes; using a paragraph or chapter boundary as the only signal, an author will sometimes have a character be a room or even a continent away from his or her previous location with the reader/listener left to interpolate how that character came to be there. In other texts such completions and extensions may be less necessary but seem to be invited. Some of Poe's stories, for example, almost beg the reader to become coauthor, adding touches of mystery and terror only suggested by Poe. In still other texts, completions and extensions are not necessary for a sensible interpretation nor invited by the author subtly. Instead, they are allowed to occur under the sole authority and impetus of the reader/listener.
