Frank C. Keil is Professor of Psychology at Yale University.

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.