The document discusses the history of idea engines and how they have changed the world. It defines idea engines as systems designed to efficiently carry out ideas in the same way machines carry out labor. Some examples of early idea engines mentioned are cuneiform script, wind power, Carolus Linnaeus' work in plant taxonomy, and scientific works. More recent idea engines include social networking and creativity techniques like brainstorming and lateral thinking. The document argues that idea engines can deliberately foster creativity through conceptual principles and operational procedures.