This, by John Gruber:
But all about how Google has announced this – the curious details of the appeals launched so far, the fact that no e in the media has been allowed to see a call real live happen – makes me suspect that for e or more reass, the current state of Duplex is less than what Sundar Pichai implied stage.
That's what I thought from the start, and John Gruber did a great job in explaining the reass. . He also explains that he is not collaborating with Google's ability to find a real AI with the human spirit able to make our appointments, and I agree with him there too. The Google Duplex demo and the demo information that was revealed are not complete. It's a good read that I recommend.