Comment by animal531

That's quite a complicated problem.

If someone comes to me and asks a general question I can easily say no. But if I go up to for example a librarian and ask them where to find book N, then I would expect them to either know where it is, or how to find it.

If instead I asked them what the weather was going to be tomorrow, then I don't know would again be a reasonable response.

So for me the line becomes a search engine problem where no just means "there are no pages for this search result", but translated into LLM.

I think instead of Yes/No I'd rather want some probabilities such as, "This response is N% accurate based on these research metrics", or "M% accurate based on the latest research on topic O at date P" etc.