Not just that, remember it’s just an LLM. It quantifies which tokens (or words and letters, if you will) come up next. It doesn’t matter if it’s factual or fictional - if it’s good enough, it does that.
LLMs are very confident in lying. I once asked it if there is a magic method to catch magic method calls in PHP - it told me its __magic. Lo and behold, there is and never was such a method. That’s my first and last time I tried it, and there ain’t gonna be a second time in the near future.