The other thing has been done as well though: Obama shook a robotic arm's hand, the arm was being controlled by a paralyzed man; he learned the proper 'thoughts

The other thing has been done as well though: Obama shook a robotic arm's hand, the arm was being controlled by a paralyzed man; he learned the proper 'thoughts' for generating movement himself and the researchers didn't have recordings of the man moving prior to his accident leading to paralysis