چگونه از صخره عمودی 3000 فوتی بدون طناب بالا رفتم

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, this dizzying scene marked the culmination of a decade-long dream. In a hair-raising talk, he tells the story of how he summited Yosemite's El Capitan, completing one of the most dangerous free solo climbs ever.

The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more. You're welcome to link to or embed these videos, forward them to others and share these ideas with people you know.