articles http://economistsview.typepad.com/economistsview/2012/05/things-that-will-change-the-world.htmlThings That Will Change the World: Overcoming spinal cord injuries (I learned a lot about the spinal cord from the first segment, e.g. the systems that control walking are at the base of the spinal column, the brain has little to do with it), remote brain controlled mechanical hands, self-directed robots,....