Overview: The goal: to develop the world's best sports prosthetic leg and win gold at the 2020 Paralympic Games in Tokyo. Taking on this challenge is MIT graduate Ken Endo, selected in 2013 among Technology Review's top 35 Innovators under 35. Working alongside top Paralympians to develop prosthetics, Endo also established Tokyo's Blade Library, a facility where amputees can try out high-end prosthetics for themselves. Follow a man working to change established notions of disability.