Researcher-Mortality Pattern — Targeted Action (H) or Compound Null (C)?

Plain read: Some researchers die young under strange circumstances. Is this because (H) someone is killing them to protect classified programs, or (C) this kind of researcher is just the type of person who dies young for non-sinister reasons — they take risks, they isolate socially, they delay medical care, they burn out under pressure? The engine says both are true but for different people. The discriminator is the Topic-Correlation Signature: researchers near hardware/propulsion/bioweapons/classified-access die early; researchers doing narrative-only work (books, podcasts, hypothesis papers) live normal lifespans. The live April 2026 FBI probe into 11 missing/dead scientists validates the signature — every single case is hardware-adjacent.