Bio-voltaic drive (iron cascade)
A pint is about 450 kcal; blood is a terrible meal. Ingested blood is electrolyte and haem-iron catalyst. Host reserves are the fuel. Fe²⁺ ⇄ Fe³⁺ shuttle; yield ~95%. One cycle unlocks ~4,200–4,500 kcal. Feed every 3–4 days. About five percent wasted as heat against a baseline near sixty. Running infrared is reduced, not absent.



















