 Weizenbaum began to have serious ethical doubts about AI when Kenneth Colby wrote <unk> , a <unk> therapist . Weizenbaum was disturbed that Colby saw his mindless program as a serious therapeutic tool . A feud began , and the situation was not helped when Colby did not credit Weizenbaum for his contribution to the program . In 1976 , Weizenbaum published Computer Power and Human Reason which argued that the misuse of artificial intelligence has the potential to <unk> human life . 
