"Instead, like the predictive text feature on smartphones or in email programs, they just predict what words might come next in a sentence. Every prompt response is a probability equation, as opposed to a demonstration of any real understanding of the material at hand, a reality of the underlying machinery that leads to the phenomenon of AI hallucination — a very serious failure of the tech made even more complicated by the machines' proclivity for sounding wildly confident, sometimes to the point of becoming combative, even when delivering incorrect answers."