Robert A. Wilson is Professor of Philosophy at La Trobe University, the author of Genes and the Agents of Life, and coeditor of The MIT Encyclopedia of the Cognitive Sciences and of Explanation and Cognition (MIT Press). He directed the project that built EugenicsArchive.ca and is a director and the executive producer of the documentary Surviving Eugenics.

Frank C. Keil is Charles C. & Dorathea S. Dilley Professor of Psychology at Yale University, where he is also a member of the Cognition and Development Lab. He is the author of Developmental Psychology: The Growth of Mind and Behavior and other books.