There is (or was, at least) a group of blind mountain bikers who used echolocation to estimate obstacles in their path. I was floored when I read the article[1]

There is (or was, at least) a group of blind mountain bikers who used echolocation to estimate obstacles in their path. I was floored when I read the article[1] about them; that ability always sounded like a superpower to me. [1]: http://www.psychologytoday.com/blog/sensory-superpowers/200907/mountain-biking-the-blind http://www.psychologytoday.com/blog/sensory-superpowers/2009...