Postmodernist thinkers consider history to be not very far removed from a work of fiction, something dependent on historians' own interpretations of the past. Evans, however, argues that we can trust history and it is possible to be objective about what happened and what caused it to happen. Historians, he argues, are constrained but also enabled by the surviving evidence. He shows how an understanding of social issues and rigorous scientific research give history shape, and why history is not simply what we make of it. He argues that this postmodernist view is contradictory and can feed dangerous ideologies if we accept all interpretations as fundamentally of equal value.