Epistemological scepticism can act as cognitive immunisation against the Neural Pathway Fallacy. This paper presents protective interventions: Binary Belief Protocol, Proportional Scrutiny Matrix, and three mechanisms (prebunking, neural cross‑training, dopamine rechanneling). It maps each to NPF factors and CNI, summarises efficacy data from independent studies, and sketches a minimal trial design. All claims are hypotheses; no NPF‑specific validation is claimed.