It is a factor outside of education that Moe believes is the real game-changer: the rapid expansion of information technology. Moe believes, as he and John Chubb argued recently in their 2009 book, Liberating Learning, that technology has the power to weaken the unions by fundamentally changing the way that schools operate. Schools are heavily dependent on human capital—that is, teachers. Technology is beginning to enter classrooms and perform some, though not all, of the tasks for which teachers have always been required. Interactive software can not only supplement, but eventually replace, a portion of teacher-based instruction. Over time, technology could make it so that schools require fewer teachers and thus fewer union members. Moe makes a bold prediction that someday soon, this is going to happen.