Speech and writing actions differ from their products. We can call the actions utterings and inscribings. An uttering’s product is an utterance. An inscribing’s product is an inscription. An uttering or inscribing is “abandoned” because features of the uttering or inscribing are not linguistically available to the audience in the utterance or inscription. Iterations of what is linguistically available, whether by the speaker or others, differ in truth-conditions from the original simply because the present and past tenses are indexicals. The force of an original is not linguistically available, so every utterance or inscription is “abandoned.” Repetitions of utterances with indexicals generate expressions with different truth-conditions but may be copies, and so iterations.
This is what we might say about Philosophical Instigations, a collection of slips of paper in the nachlass of an important philosopher, Wittstein, that were taken to be paragraphs he wrote as expressions of a new philosophical theory, but which in fact were his collection of student in-class responses to the repeated assignment, “Write something short and interesting about language.”