The next morning, in the bike shop, I present my idea for my new career to Grigory. He studies my face, looking pained. “You’re serious?” he asks. “Completely.” When he doesn’t reply, I press him. “Are you in?” “What choice do I have? Face it, James, none of your designs would ever get off the ground without my calculations. They certainly won’t stay up.” “I’ll take that as an enthusiastic yes.”

