Historians whose profession is to study the past, are as wary as scientists of the idea that events unfold in a manner that can be predicted. In fact, in a study of history the illusion of inevitability has serious consequences that it is one of the few things that both conservative and socialist historians can agree on.

We afford automatic respect to superstar business moguls, politicians, and actors and to anyone flying around in a private jet, as if their accomplishments must reflect unique qualities not shared by those forced to eat commercial airline food. And we place too much confidence in the overly precise predictions of people - political pundits, financial experts, business consultants - who claim a track record demonstrating expertise.

Obviously it can be a mistake to assign brilliance in proportion to wealth. We cannot see a persons potential, only his or her results, so we often misjudge people by thinking that the results must reflect the person. The normal accident theory of life shows not that the connection between actions and rewards is random but that random influences are as important as our qualities and actions.