“When Felix walked off the project,” says Walshe, “it was the darkest moment in his life. But a phobia—that’s deeply rooted fear. To face that, to come back, to trust strangers with his life, to put himself back into position to do something no one else had ever conceived of? I’ve seen plenty of astounding feats of human performance, but emotionally, Felix’s journey is the farthest I’ve ever seen an athlete come.”
