The author's particular gripe is that the Watson advertisements showing someone sitting down and talking to "Watson." They bother me as well (and did so when I was working at IBM in the Watson group) because they portray a capability that nothing in IBM can provide. Nobody can provide it (again to the author's point) because dialog systems (those which interact with a user through conversational speech) don't exist o…
To be fair, you can kinda talk to Google assistant in a "question response" type capacity and it does pretty well.
Also we (science) know shockingly little about real dialogs and their challenges as far as I can find out - but I am not a linguist and am angling here fore some killer references !