And comparing these two results for the same question serves to illustrate how ChatGPT does not in any meaningful sense _understand_ what it is "talking" about.

And comparing these two results for the same question serves to illustrate how ChatGPT does not in any meaningful sense _understand_ what it is "talking" about. It basically just strings together relevant-seeming words in a plausible way. The result may be useful, or it may be nonsense. You'd better know enough (and be alert enough) to tell the difference...