“You’re frustrating,” he says, “because you’re doing great and then you get stuck, and it’s like you’re paralyzed.” “When I was younger, I climbed better.” “Younger, like seven?” “Yeah.” “You know why? Because you weren’t so nervous all the time.” His voice is challenging, his eyes amused. Sam thinks, You know what makes me nervous? You. He tells her, Calm down. Be strategic. Attack the wall. “You know what I’m saying?”