In his book, Zimbardo, a psychologist and a professor emeritus at Stanford University, best known for leading the Stanford Prison Experiment in 1971, focuses mainly on young American males, but some UK facts and stats are just as worrying. A young British person, for instance, is more likely to have a television in their bedroom than a father in the house by the end of their childhood. The comparison is not incidental: to understand our increased use of technology, Zimbardo argues, we have to take into account other trends that are radically altering male identity, such as absent fathers, unemployment, lack of exercise and lack of positive male role models.