When Mark Zuckerberg says he wants to connect the world’s people, it’s not some gentle, humanist statement. Facebook grew up inventing the world’s leading social network for sharing with everyone you know, and it now owns what could be called the world’s largest private social network. While Facebook slaved away creating a utility used by 1.25 billion people, WhatsApp has replaced an essential utility for many, SMS. WhatsApp is used by over 450 million people every month, and often in places Facebook and its Messenger app had little success reaching, like Spain and Switzerland.