CODE ME A GOOD REASON: JOSEPH WEIZENBAUM AND A RHETORIC OF ETHICAL AI

Abstract

Joseph Weizenbaum was a Massachusetts Institute of Technology professor often credited with creating the first chatbot, or automated computer conversationalist, in 1966. He named it ELIZA. Ten years later, however, he wrote Computer Power and Human Reason: From Judgment to Calculation, a book questioning the ethics of natural language processing, AI, and instrumental reason. This dissertation presents Weizenbaum as an early 20th century rhetorical theorist of computation. With an understanding of rhetoric as the material means for generating good reasons for living together, I articulate how Weizenbaum’s rhetorical interventions around the early development of computational culture can inform the ethics of engineering broadly and the development of AI specifically. The first chapter provides an overview of my historical and theoretical framework. The second chapter starts with Weizenbaum’s childhood and ends with the release of ELIZA. The third chapter chronicles his growing disillusionment with computers in society in the context of the Vietnam War. The final two chapters are dedicated to the book and reactions from a prominent figure in the history of AI, John McCarthy. Informed by Weizenbaum, I recuperate rhetoric as a practice of reason composed of technē that requires phronêsis in order to be realized in its full ethical potential. I argue that recognizing the practice of rhetoric inherent in engineering and ethics can better equip engineers and the public to manage scientific and technological uncertainty with the care necessary for a humane future.