What's the smartest age?

Tomorrow is the annual Brain Clash — a decathlon of mental challenges, trivia competitions, and puzzles. Amir needs a smart and capable teammate and must choose between three people; all of different ages and talents. So, who should Amir choose for the contest? Shannon Odell breaks down the idea of "smart" and explores how our brain development impacts our skills at various stages of our lives. [Directed by Biljana Labović, narrated by Alexandra Panzer and Jack Cutmore-Scott, music by Weston Fonger].