What I Always Called Fact Immunity

This paper identifies and examines what I term “Core Belief Immunity” the systematic tendency of adult human minds to quarantine information that threatens foundational beliefs about existence, identity, mortality, or social order. Unlike standard cognitive biases or motivated reasoning, this phenomenon involves automatic isolation of threatening information rather than conscious resistance. Drawing on cases from cryonics, religious paradoxes, political legitimacy, and theoretical physics, I argue that minds treat existential threats like immune systems treat pathogens: through quarantine rather than engagement. This mechanism renders traditional notions of rational discourse problematic for topics that challenge core beliefs, as such information simply fails to register as requiring response. The paper synthesizes empirical research on valence-dependent learning asymmetries with philosophical analysis of why certain logical arguments generate silence rather than debate.