Parents and teachers alike express concern about how much time teenagers spend on their cell phones today, but what do the teenagers themselves think? Andrew Housiaux, a philosophy teacher at a boarding school in Massachusetts, asked his students to give up their cell phones for three days and write about the experience. Their reflections showed them grappling with issues of anxiety, identity, and humanity that they encountered in the work of the existentialist philosophers they were studying in class. The experiment brought the work of those thinkers to life and showed that students are interested in thinking deeply about their inner lives.