Every time we turn around, auto manufacturers are developing loads of new displays and sensors. At what point does the driver hit sensory overload? That's the question that prompted John Morrell, an Associate Professor at Yale School of Engineering, to position twenty vibrating cellphone motors in a rectangular array inside the driver's seat. Several different warnings were devised, including positional warnings (someone approaching closely behind will set off the center of the array, while a car approaching from the left or right will set off the motors on your left or right, respectively). Pre
