Reminds me of how eyewitness testimony in court (and human memory in general) has been discovered in recent decades to be less reliable than often thought. Memories can be falsified - I remember reading a science article where a researcher prompted passersby to recall meeting Bugs Bunny at Disneyland as a kid, and many of them recalled this well despite Bugs never having been a Disney character.
ChatGPT is probably less reliably knowledgeable than Jeopardy’s Watson, and upon asking ChatGPT if it or Watson would win in a fight, it told me something akin to “violence is never the answer”.
Isn’t hallucination a specific kind of delusion? Not everyone with delusions is hallucinating.