How I climbed a 3,000-foot vertical cliff -- without ropes | Alex Honnold
How I climbed a 3,000-foot vertical cliff -- without ropes | Alex Honnold Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.
Imagine being by yourself in the dead center of a 3,000-foot vertical cliff -- without a rope to catch you if you fall. For professional rock climber Alex Honnold, thicharacterclimbingincrediblelink