What if you were to invent a way of getting light buyers to recall your brand just as they are about to choose? Ideally, it would reach millions of people who aren’t particularly thinking about your product. You’d want them to see the same thing at around the same time, so that they can talk to each other about what they’ve seen, reinforcing each other’s memories of it. You would need to sneak up on them, since they have near-zero interest in hearing from you, indeed don’t want to. You’d need a form of content requiring negligible mental effort to process: one which comes in bite-sized chunks, but which is still capable of moving and delighting. It turns out there is an app for that: the TV ad.