Definition
**The "Blood Forbidden Trial" as a Systemic Prisoner's Dilemma:** The "Blood Forbidden Trial" in *A Record of a Mortal's Journey to Immortality* is a perfect model of what game theorists call a "prisoner's dilemma" applied to a xianxia context. The sects could all cooperate, share the herbs, and produce pills for everyone. But because the reward (the pill) is distributed according to the *proportion* of herbs each sect brings back, the rational choice for *each* sect is to maximize their take, even at the cost of bloodshed. This turns a resource-gathering mission into a zero-sum death game. This is a microcosm of the entire "Mortal Stream" philosophy: the world's systemic structure itself is designed to create conflict, not cooperation. It’s not that the cultivators are all evil; it’s that the rules of the game force them to be ruthless in order to survive.