Daniel Kish has been blind since he was 13 months old. He navigates the world using echolocation, sending out flashes of sound that bounce off objects and back to let him construct an understanding of the space around him. He let Kate Torgovnick May tag along as he got ready for TED.
丹尼尔·基什在费尔蒙太平洋边缘酒店的大理石地板上轻盈地挥动着白色盲杖。他来到加拿大温哥华，受邀在TED2015上发表演讲，演讲协调员刚刚通知他需要到后台进行彩排。
“基什先生，那里有个小台阶，”一位行李员说道，一边推开酒店大门，一边指着路面上的一处凸起。然而这个提醒并无必要——基什早已察觉到地面的起伏并从容应对。我们向右转时，他放慢脚步，用嘴发出一声短促的咔哒声，随后继续大步向前。
基什在13个月大时便已失明，他靠回声定位来感知世界。他用舌头抵住上颚制造负压，发出一阵阵声音脉冲，声波在周围的物体上反弹后传回他的耳中。通过这种方式，他在脑海中构建出周围空间的图像，从而自由自信地行走于世界之中。
他的TED演讲固然会讲解回声定位的运作原理，但他更希望听众能领悟到一个更为普世的信息。”人们对回声定位很感兴趣，想知道它如何运作、为何有效，但大多数人永远不会用到它，”他说，”所以我希望人们能从中获得一些启示，用以应对自己生活中的挑战。我们常常被困难压垮——我也一样，但我是在没有恐惧的环境中长大的。有很多事情值得害怕，但重点始终在于直面恐惧。”
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英国出生的摄影师罗伯特·莱斯利驾车穿越美国南部与西南部，累计行程一万英里。他用镜头记录下废弃的停车场、被法拍的房屋与残破的广告牌，呈现的并非繁荣的机遇之地，而是一片在风暴蹂躏后走向衰败的土地，折射出美国梦背后深深的幻灭与矛盾。
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