The flash over Hiroshima faded, but the light keeps refracting. Today it appears in AI-optimized reactor cores, in defence budgets measured in trillions, in the careful moral arithmetic of blockbuster films. Canada sent uranium south in secret rail cars in 1943; we still tend heavy-water reactors on the Shield. A polite nation, quietly bound to the hottest question humanity ever asked itself. What do we do with a fire we cannot put out?











