added by digital assets. In between there is a grey zone – mixed reality. Popular attention in each case is focused on the method of delivery: how you experience. But the innovation that has driven the experiences so far has been much more to do with the back end of the technology, where significant advances in individual fields have been assembled into a chain. The first set of links is to do with capture: it’s what enables us to see things in the round. Since children are rarely enthusiastic about cleaning their teeth, Toothbrush Games uses augmented reality to encourage better dental hygiene habits. A two-minute game, featuring a live video of the user brushing their teeth alongside some fun characters, turns a chore into a challenge. The stroke of genius? It only works when the smartphone’s microphone picks up the sound of brushing. The second set of links is about process. So far so good. And you would need a heart of pure flint not to be moved by some of the experience highs, which this incredible cocktail of innovation can produce. But then, how do you view it? And it is in the area of display that the technology