Beyond the three snares: Implications of James' 'psychologist's fallacy' for 21st century science

William James in his Principles of Psychology (1890, pp. 194-197) warned psychologists against their own habits of assuming that other human beings are like they are. He outlined “three snares” which he considered as obstacles for psychology becoming a science: 1. The misleading influence of language, 2. The confusion of one's own standpoint with that of mental fact, and 3. The assumption of conscious reflection in the participant as that is the case for the researcher. His challenges remain valid to the discipline also in our 21st century, yet an unsolved problem remains: development of formal theoretical systems that generalize from the “pure experience” of living in irreversible time to basic principles of meaning-making. By pointing to the three snares 125 years ago, William James himself created a new one-that of pragmatism.