Paraplegic Adam Fritz (R) wheels himself to the next station with Kristen Johnson, a spinal cord injury recovery specialist, at the Project Walk facility in Claremont, California September 24, 2015. A brain-to-computer technology that can translate thoughts into leg movements has enabled Fritz, paralyzed from the waist down by a spinal cord injury to become the first such patient to walk without the use of robotics. REUTERS/Alex Gallardo