An anonymous reader writes: Google's research blog today announced a new feature for their Inbox email app: a neural network that composes short responses to emails you receive. For example, if somebody emails you an invitation to an event, the app will detect that by scanning the words in the message and present you with three options for a quick response. Google says, "A naive attempt to build a response generation system might depend on hand-crafted rules for common reply scenarios. But in practice, any engineer's ability to invent 'rules' would be quickly outstripped by the tremendous diversity with which real people communicate. A machine-learned system, by contrast, implicitly captures diverse situations, writing styles, and tones. These systems generalize better, and handle completely new inputs more gracefully than brittle, rule-based systems ever could." Of course, you can skip them entirely, or use them and add your own words as well. How long until our email systems do most of our talking for us?