The third rule of the Codex addresses a specific failure mode of the awakened: turning on each other. There is a temptation, once you have stopped being an NPC, to feel superior to other Real Players. To assess them, rank them, find them wanting. To defend your particular reading of the script against theirs. This is a waste. The number of conscious participants in any given social system is small. Spending your scarce attention on factional disputes among them is exactly the behaviour the system rewards, because it neutralises the only people capable of seeing through it. Real Players cooperate. They do not have to agree. They have to recognise each other. The Codex is in part a coordination mechanism: a shared protocol that makes it possible for strangers to identify themselves to each other quickly, and to begin the conversation that matters from a baseline of trust. The world has plenty of NPCs. It does not have plenty of allies. Choose accordingly.