Well, that's not exactly right. The thing we haven't quite mastered yet is humor - I guess it's a task for quantum computers - but we train the GPT on a pretty big dataset of personalized dialogues, so it does start demonstrating typical speech patterns. Plus, the retrieval model is quite sophisticated, with the ability to not just grant, but limit access to certain information. And there are other things, too. So, the personality is imitated, of course, but the resemblance is striking.