At a basic level, it's now much less clear as to what AI realistically can and cannot do, especially at the present moment. Yes, there's a lot of great speculation about what AI-driven technologies will eventually be able to do, but there are several things that we were led to believe they could do now, which turn out to be a lot less "magical" than they first appear. In the case of speech-based digital assistants, for example, there have been numerous stories written recently about how the perceived intelligence around personal assistants like Alexa and Google Assistant are really based more around things like prediction branches that have been human built after listening to thousands of hours of people's personal recordings. It's not hard to see that some of the original promise of AI isn't exactly living up to expectations. In other words, people analyzed typical conversations, based on those recordings, determined the likely steps in the dialog, and then built sophisticated logic branches based on that analysis.