That is some really cool stuff, there! I worked with a machinist (older guy) who once ran a machine shop staffed with blind people, and it was amazing to hear how these folks could operate the machinery and measure the part features without eyesight. So reading this article, it doesn't seem such a stretch that a person couldn't use his ears for guidance feedback. They say that the loss of one sense accentuates the ones remaining, so it so far-fetched that a blind person could compete in much faster venues? I wish this guy the best of success in what he is trying to do, he obviously has not decided to lay down and die.
