Alex Honnold does not experience fear like the rest of us: http://nautil.us/issue/39/sport/the-strange-brain-of-the-worlds-greatest-solo-climber http://nautil.u

Alex Honnold does not experience fear like the rest of us: http://nautil.us/issue/39/sport/the-strange-brain-of-the-worlds-greatest-solo-climber http://nautil.us/issue/39/sport/the-strange-brain-of-the-wor...