I’m just off the continental divide, free-soloing at an elevation of 12,000 feet, and 800 feet up a big piece of rock. Next to me is my current climbing partner. We’re casually standing on a two-inch ledge, about five feet away from each other. His body is sideways to the rock, one hand gripping an exposed edge, arm fully extended, his other arm dangling below him as he’s leaning over the void. We’re both looking down at my former climbing partner who’s 20 feet below us muttering to himself. He’...