Earlier quoted context omitted.
It’s not a trick to sound sophisticated. Hallucinations are more like a subcategory of bugs. The system is technically correctly generating, structuring, and presenting false information as fact.
Technically everything an LLM does is hallucination that happens to be on a scale between correct and non-correct. But only humans with knowledge can tell the difference, math alone can't. It's not even a bug: it's the defining feature of the technology!
Who says the humans (all of them) aren't hallucinating too?