At the start of every year, almost everyone makes a commitment to do something or stop doing something in order to make a difference in their lives or those of others. And by "almost everyone", we also mean tech company CEOs. For Mark Zuckerberg, 2016 won't simply be a year for learning a new language or reading more books. He already did those the previous year. This year he's taking on something more ambitious: a smart home AI that is practically Jarvis from Iron Man made flesh. Or digital, in this case.