49 min

Pushing the Limits Aspen Ideas to Go

    • Society & Culture

What does it take to rock climb one of the world’s hardest routes at night in the bitter cold? Tommy Caldwell, an accomplished climber, says he summoned focus, drive, and endurance to summit Yosemite’s nearly vertical 3,000 foot Dawn Wall.

What does it take to rock climb one of the world’s hardest routes at night in the bitter cold? Tommy Caldwell, an accomplished climber, says he summoned focus, drive, and endurance to summit Yosemite’s nearly vertical 3,000 foot Dawn Wall.

49 min

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