The other day, I was spending time with a young niece – still a toddler – while she watched videos on her iPad. She was working her way through a YouTube playlist – in each video, a pair of hands opened a Kinder Surprise and assembled the toy inside. Thinking I was doing her a favour, I made the video full-screen. But this sent my niece into a panic. "Little TV!" she insisted. "Not big TV!" She needed the smaller screen format so as to monitor the lineup of videos still to come. Focusing, even for a minute, on a single video was no good. She needed the panoply, the stream, the comfort of attending entertainments.