 The main argument of the book was that friendly machines are still machines and that coming to terms with this tends to promote a cynical temperament in their human users, who soon see through the surface charms of coloured screens and seductive avatars.In his next book, Technology and Social Power, he developed a critical theory of interpretation that applies to technology design in social context, using examples from digital culture, including 3-D printers and video games.Kirkpatrick has developed this approach further in connection with computer, or video games.