Somebody in the video said they each have control of 1 arm each. If so, wonder if each has control of 1 leg each, and if so how can they drive seperately. In other words, wonder if either one is driving does her brain tell the brake foot and gas foot what to do...
Saw the show about them a few years ago. Each control the arm and leg on their side.
Amazing how regular their lives are, considering. I guess they are in college now.