Although Mark Inglis walks on prostheses, he has achieved a feat that tests the physical boundaries of many. A year ago, the New Zealander reached the highest point on Earth, the 8,849-metre summit of Mount Everest. And he says that he barely needed more help than fellow mountaineers during the climb. “I don’t have a disability,” emphasizes the 64-year-old in an interview with dpa. “I just have an additional complication in my training and have to concentrate much more on the mountain and make more of an effort.” He explains in an online video that he has loved mountaineering since his youth. …