Abstract

Human genetics research appears to be approaching a period of re-examination due to the decades-long failure of molecular genetic research to uncover the genes presumed to underlie psychiatric disorders, psychological traits, and some common medical conditions. As currently dominant theories of genetic causation come more into question, we will see a renewed interest in reassessing the potential roles of genes and environment in these areas. To illustrate the potentially harmful and diversionary impact of emphasizing genetics over the environment, the author tells a story in the form of a parable. In this parable, the citizens of a medium-size city are confronted with the task of dealing with a group of arsonists who are systematically burning down several houses each week. The Mayor argues that the best way to prevent arson is to analyze the types of wood used to build the city’s houses, with an accompanying lack of interest in arresting the arsonists. Her opponents argue that regardless of the type of wood used, the city and its citizens should prevent arson attacks by focusing attention on identifying and arresting the arsonists. The Mayor’s position prevails, and the arson attacks continue for years to come at the same time as researchers continue to study and analyze the wood used to construct the houses. Informed readers will recognize the analogous ideas, research strategies, interest groups, publications, and historical controversies related to “nature–nurture” issues, which encompass every aspect of the parable