Soon we’ll be able to control cars with our eyes

By Stuart Nathan

You’re driving home from work on Friday evening, and the last thing you want to do is cook. You notice a trattoria on the left. “Is that place any good?” you ask your car, glancing towards the restaurant and dreaming of carbonara. “Trattoria La Ruga serves traditional Italian cuisine,” the car responds. “It is rated 9/10 on an average of reviews.” Sounds just the place, you think. “Book a table for two at 8pm,” you say. Ten minutes later, the car confirms your reservation.

That scene will soon become a reality. Virtual assistants already listen to our voices. Now tech companies are developing digital aides that will track our eyes. Gaze-control technology was invented in Sweden in the late 1990s. John Elvesjö, a physicist, was working on a system to see how particles of fruit pulp move, to help juice companies filter them out more efficiently. By mistake he turned the camera sensor around to point at his own face, and realised that it was following the orientation of his eyes.