Regarding terminology used by CEGL as referenced in this question, can anyone explain the difference between addressee-new and discourse-new?
My understanding of addressee-new is that this refers to something being spoken of which has not previously been told to the person being spoken to.
My understanding of discourse-new is that this refers to something which has not yet been introduced into the discourse.
How are they different? The only idea I can come up with is that the "discourse" must be about something. If I consider that "subject" to have any kind of objective reality, I can imagine new things happening to it, but wouldn't they then be subject-new?