Facebook's Perfect, Impossible Chatbot (Technology Review)

Facebook's Perfect, Impossible Chatbot Facebook is quietly trying to develop the most useful virtual assistant ever, in a project that illustrates the current limitations of artificial intelligence. Amazon's Alexa can summon an Uber and satisfy a four-year-old's demand for fart noises. Siri can control your Internet-connected thermostat. Each serve millions of users each day. But a lucky group of around 10,000 people, mostly in California, know that Facebook's assistant, named M, is the smartest of the bunch.