Last weekend, the Oscar for “Best Documentary” went to a film called Free Solo , which captures the rope-free climb of Alex Honnold up the awe-inspiring face of El Capitan in Yosemite National Park. Nobody had ever done a free solo climb of "El Cap" and it had previously been considered impossible. Free solo climbers use no ropes or equipment, so a single slip-up could mean a fatal fall to earth. New Hampshire author and climber Mark Synnott has climbed with Honnold before. On the day of Honnold