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Mental Vaccination: A Four-Parameter Framework for Imagination-Based Methods in Crisis Preparedness
Summary
Just like a vaccine trains your body to fight a virus before you're exposed, stories and warnings about future crises can train your mind to prepare—but only if certain conditions are met. This paper argues that whether these "mental vaccines" work depends heavily on how "immunosuppressed" people are: if a threat is invisible or slow-moving (like microplastics silently building up in our bodies over years), we're less likely to feel urgency or act, even after being warned. This matters because it helps explain why some health warnings (like DDT's dangers) led to real change, while others—including today's microplastic pollution—struggle to spark the public action needed
Preparedness for crises depends not only on accurate information but on a population’s readiness to receive, integrate, and act on it when threat materialises. Speculative fiction and foresight have long been treated as anticipatory tools, analogous to vaccines that build immunity before exposure, yet the conditions under which such imagination-based methods succeed or fail remain unclear. This paper proposes Mental Vaccination as a four-parameter framework for assessing the inoculation effect of speculative and foresight media on crisis preparedness. Drawing on inoculation theory, the Extended Parallel Process Model, construal-level theory, and research on AI sycophancy, the framework identifies four parameters: formulation, duration, host immunosuppression, and route of administration. A dynamic model expresses the competition between a vaccination effect V and the creeping erosion C of a threat, indicating when anticipatory preparation fails to keep pace. The model is assessed against two historical cases: the Silent Spring–DDT precedent, where V kept pace with C, and microplastics, where high invisibility and long incubation suppress readiness. Host immunosuppression—a variable systematically neglected in inoculation theory—emerges as the primary determinant of whether anticipatory exposure translates into timely and accurate crisis response.