Comment by DidISayTooMuch

Characters in book don't write their own dialogs, they are merely projections of the authors. But AI chatbots are non-deterministic and come up with dialog of their own. Of course, you can say they are trained on large corpus of texts and all they are doing are just predicting the next token in the series. But yet, why do they seem like they have distinct personalities? The prediction algorithm is working in such a way that it's creating a sense of personality. How is this happening?