The Tachi Laboratory is presided over by Dr. Susumu Tachi, Professor Emeritus of The University of Tokyo, which has been pursuing pioneering research on science and technology for human augmentation and applying the science and technology in assisting human beings, such as haptic virtual reality and Telexistence. Since the 1970s, the laboratory has consistently studied robots by considering them extensions of our physical selves, for example, “alter ego robots,” “surrogates,” and “incarnations” or “avatars,” for more than 40 years.