
I make this claim, based partly on the work of psychologist Stanley Milgram. Milgram devised and carried out ingenious experiments that exposed the frailty and self-delusion that are central to our lives. He showed how easy it is to make ordinary people do terrible things, that "evil" often happens for the most mundane of reasons.
I first read about Milgram's work when I was a banker in the Seventies, working in the City. I was so fascinated by his ideas that I re-trained as a doctor, with the intention of becoming a psychiatrist. Instead I became a science journalist. Recently I got the chance to make The Brain: A Secret History
, a television series which reveals how much we have learnt about ourselves through the work of some of the 20th century's most influential, and deeply flawed, psychologists.
In the course of making the series we found rare archive and first-hand accounts of the many inventive and sometimes sinister ways in which experimental psychology has been used to probe, tease, control and manipulate human behaviour. High on the list of psychologists I wanted to learn more about was Stanley Milgram.
Milgram once wrote that we are "puppets controlled by the strings of society". Yet what is also true is that not all puppets jump when their strings are pulled. Many of the fast-food managers who were rung up the "policeman" refused to follow his orders. In Milgram's own experiment, although 65 per cent of the volunteers were prepared to give apparently lethal electric shocks, that still left 35 per cent who would not.
What no experimenter has yet been able to predict are the characteristics that mark out those who will rebel from the rest. The only way you will ever know how you measure up is when you find yourself tested. You have a one in three chance of passing.