A group of researchers in Japan made a backpack robot that allows two people in different places to work on a task together. The robot is equipped with two eye-shaped cameras that look over the shoulder of the wearer, plus two pairs of hands that can be controlled by joysticks. The joysticks vibrate using “force feedback sensors,” designed to make it easier for a remote user who is powering the backpack to grab things. The backpack-wearer can also give the robot—i.e. the remote worker—full control of their arms by attaching wristbands to their hands, but this definitely requires a level of trust. Named “Fusion,” the backpack can make tasks like co-building something easier. It can also help remotely teach skills like playing an instrument or using the correct posture in sports.