The difference is that I had a basic experience of that chocolate. The LLM is a corpus of text describing other people's experience of chocolate through the med

The difference is that I had a basic experience of that chocolate. The LLM is a corpus of text describing other people's experience of chocolate through the medium of written language, which involves abstraction and is lossy. So only one of us experienced it, the other heard about it over the telephone. Multiply that by every other interaction with the outside world and you have a system that is very good at modelling telephone conversations but that's about it.