Wasn't the conclusion that his fear response is greatly attenuated? http://nautil.us/issue/39/sport/the-strange-brain-of-the-worlds-greatest-solo-climber http:

Wasn't the conclusion that his fear response is greatly attenuated? 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...