Jay Wright Forrester founded the field of system dynamics, which deals with the simulation of interactions in dynamic systems. In his work on social systems, he discusses the possibilities of social system dynamics, or modeling social systems using computers with the aim of testing the possible effects of passing new public policies or laws. In his paper Counterintuitive Behavior of Social Systems, he recognized the difficulty of producing a reliable computer model system, but argued that an imperfect model was better than not using a model at all and simply implementing new policy.[9]