Pascal Chabot has a doctorate in philosophy from the Free University of Brussels. He is a researcher at the Belgian Fund for Scientific Research. Graeme Kirkpatrick is Senior Lecturer in Sociology at the University of Manchester, UK. He is the author of Critical Technology (2004) which won the 2005 Philip Abrams Memorial Prize from the British Sociological Association; Technology and Social Power (2008) and the co-editor of Historical Materialism and Social Evolution (2002).