Fascinating stuff. This holds out hope for thousands who have lost limbs: There have been remarkable mechanical advances in prosthetic limbs in recent years, including rewiring nerve fibers to control sophisticated mechanical arms (see “A Lifelike Prosthetic Arm”), and brain interfaces that allow for complicated thought control (see “Brain Helps Quadriplegics Move Robotic Arms with Their Thoughts”). But for all this progress, prosthetic limbs cannot send back sensory information to the wearer, making it harder for them to do tasks... Read more