On June 3rd, 2017, Alex Honnold became the first person to free solo Yosemite's El Capitan--to scale the wall without rope, a partner, or any protective gear--completing what was described as the greatest feat of pure rock climbing in the history of the sport (National Geographic) and one of the great athletic feats of any kind, ever (New York Times). Already one of the most famous adventure athletes in the world, Honnold has now been hailed as...