As I just said ChatGPT is not self aware, so it can’t answer questions about it’s own workings like that. (this is somewhat true of humans too though, there is a lot going on in our subconscious, but we are aware of our own conscious thoughts to some extent at least)
It just hallucinated an answer
If it didn’t have a model of human behaviour, then it wouldn’t work, because the whole idea is it’s simulating what someone acting as a helpful assistant would do.