The Principle of Belonging and the Emergence of Absolute Belief Systems A Systems-Theoretic Explanation of Religious and Ideological Rigidity

Abstract Religious and ideological belief systems have played an important role in organizing human societies, creating moral frameworks, transmitting cultural knowledge, and producing social cohesion. However, some belief systems develop into highly absolute forms in which doctrinal claims become resistant to empirical criticism, alternative interpretations, and scientific evidence. This paper proposes that the Principle of Belonging provides a useful systems-theoretic framework for explaining one mechanism underlying this transformation. The central proposition is that human belonging is not merely a social preference but a potentially powerful organizing variable connecting identity, affiliation, belief, emotional security, and group stability. Building upon the proposed Belonging Index, BI = (C × I × A) / D where C represents connection, I identity, A affiliation, and D factors that reduce or threaten belonging, this paper proposes that belief rigidity can increase when group membership becomes strongly dependent upon conformity to shared doctrines. A positive feedback process may then emerge: belief strengthens identity, identity strengthens belonging, belonging produces social reinforcement, and social reinforcement strengthens belief. When contradictory evidence threatens not only a proposition but also the individual's identity and social membership, the individual may experience the information as a social or existential threat rather than merely as evidence requiring neutral evaluation. The proposed Belonging–Belief Feedback Hypothesis (BBFH) does not claim that religion is inherently irrational or that all religious beliefs lack scientific grounding. Rather, it distinguishes metaphysical claims from empirically testable claims and proposes that the social structure surrounding a belief can influence how people evaluate evidence. The framework is compared with social identity theory, cognitive dissonance theory, motivated reasoning, epistemic vigilance, and research concerning religion and cooperation. Examples involving religious communities, political ideologies, nationalism, scientific communities, and online communities demonstrate the potential generality of the mechanism. The paper concludes that balanced belonging may promote social cohesion while excessive coupling between belonging and doctrinal conformity may produce rigidity, polarization, and systemic imbalance.