As part of the DARPA program to create «revolutionary prosthetic» developed this complex, including a piece of iron and soft, "recognizing patterns».
This is the same darpovskaya program, which a few years ago the world was shocked by the fact that продемонстрировала your dentures by which a woman feed themselves chocolate.
Video leaves more questions than answers (for example, signals from the chest muscles to control your fingers or they are connected directly to the nerves? Or where the battery?) It is a pity that while functionality allows to shift the ball from one ledge to another, but the appearance of the device is encouraging.