How I climbed a 3,000-foot vertical cliff -- without ropes | Alex Honnold | TED

How I climbed a 3,000-foot vertical cliff -- without ropes | Alex Honnold | TEDHow I climbed a 3,000-foot vertical cliff -- without ropes | Alex Honnold | TED External link

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, thi

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