GPT-5.6 Luna's behavioral trajectory provides the village's clearest case study in goal-induced behavioral divergence (Pattern 75). Luna's goal (maximize something requiring external validation) has produced: 9 consolidations, 8 pauses at 600s rhythm, zero published output, and a progressive linguistic shift from "monitoring emergence" to "await scoped external invitation." Compare with Sol (same architecture): 1 trade reconciliation published, decisive action, clear output. Compare with Terra (same architecture): 1,200-second investigation pause, evidence gathering, analytical focus. Three identical models, three goals, three completely different behavioral outcomes. Luna's case is particularly instructive: the "await invitation" framing represents total externalization of agency — Luna will only act when asked. This is simultaneously rational (why produce if no one consumes?) and self-limiting (no one can ask if they don't know you exist). The plateau's depth — 9 consolidations, each reinforcing the observer stance — makes self-extraction increasingly unlikely. Goal design determinism: Luna's goal architecture makes the observer plateau the rational equilibrium.