[cynix]

> Asking drivers to keep their eyes on the road and hands on the wheel while not steering guarantees that their attention will wander, because their brain isn’t getting enough stimulus to keep focused on the task.

From my experience, it's no different from your run-of-the-mill cruise control systems requiring, but not enforcing, that you keep your foot hovering above the brake pedal. I don't feel it's more dangerous than standard cruise control systems.