I completely forgot about Google Duplex. It looks like it is still around but very limited in terms of what phones you can use, what cities it can be used in, and what businesses in those cities will accept it. Doesn't appear any progress has really been made in the past few years. I think this is a great point of how companies create something with AI that is initially really cool, but isn't quite there to actually be very usable and gets forgotten when they roll out the next big thing.