People are so negative about Google's new products. I din't think it should be just dismissed right off the bat like that. Yes, it would take something truly spectacular to dethrone the likes of Whatsapp or Facebook Messenger, but some of the tech that is powering this app does sound amazing, albeit quite scary as well.
So, apparently Google will use machine learning algorithms to learn the type of responses you send, and predict what you want to say to certain people. They're calling it Smart Reply, and it's pretty cool but petrifying to think about. Just think, Google will try and mimic your responses, enabling you to "talk" to someone else without actually saying anything. It's pretty Skynet shit right there. But cool nevertheless.