The other day I was researching with ChatGPT.
* ChatGPT hallucinated an answer
* ChatGPT put it in my memory, so it persisted between conversations
* When asked for a citation, ChatGPT found 2 AI created articles to back itself up
It took a while, but I eventually found human written documentation from the organization that created the technical thingy I was investigating.
This happens A LOT for topics on the edge of knowledge easily found on the Web. Where you have to do true research, evaluate sources, and make good decisions on what you trust.