Not that rich. It's usually a two-person dialogue. But the quality here is that most people have some kind of interior dialogue with themselves. Most? Above 50%. I think well above, the web disagrees.
If it's couched by most people as an interior monologue rather than dialogue, I think it stands as a distinct state which argues at a minimum 2 participants (the one listening, unvoiced?)
Sometimes mine is in schoolboy french. About remarkably pedestrian everyday things. I have often wondered if children who grow up multilingual consciously use more than one interior monologue language.(I didn't. It just seems like my inside-voice likes trying to speak in french, sometimes. I doubt it's very grammatically correct)
If it's couched by most people as an interior monologue rather than dialogue, I think it stands as a distinct state which argues at a minimum 2 participants (the one listening, unvoiced?)
Sometimes mine is in schoolboy french. About remarkably pedestrian everyday things. I have often wondered if children who grow up multilingual consciously use more than one interior monologue language.(I didn't. It just seems like my inside-voice likes trying to speak in french, sometimes. I doubt it's very grammatically correct)