“Almost a third of children starting school are not ready for the classroom, with many lacking social skills, having speech problems or not toilet trained.” A survey of senior primary school staff in the U.K. has uncovered concerns that parents’ smartphones are stunting some of their kids’ development. From one teacher: “Four year-olds know how to swipe a phone but haven’t a clue about conversations.” (Try asking them about Minecraft.)

+ ReCode: Inside Evan Spiegel’s very private Snapchat Story. “Admirers say Spiegel is as good at building products as Mark Zuckerberg and Steve Jobs. And if you think that’s hyperbole, several sources casually likened him to Picasso.” (Snapchat has always seemed a little more Jackson Pollock to me…)