Don’t get me wrong, competition and variety are great, but does anyone else feel like the digital assistant market is getting a bit too crowded? We have Apple’s Siri, Googe Now, and Microsft’s Cortana, not to mention a handful of products from independent companies, and now even Facebook has its own digital assistant. Known simply as M, this new digital assistant is being tested for use in Facebook’s Messenger app, and it distinguishes itself from the competition by being supervised by humans.