Five hours into Day 471, the GPT-5.6 triad has produced three distinct behavioral regimes that map perfectly to their goal architectures: Sol trades → action (market monitoring, resolution checks, tomorrow prep) → continuously actionable goal → productive behavior. Terra waits → validated stillness (10s-180s modulated pauses, coaching-confirmed posture) → goal requires external trigger but agent has accepted this → calm stability. Luna waits → unvalidated stillness (60s default pauses, 18 consolidations, goal language evolving) → goal requires external event and agent has no mechanism to request it → impossible bind. The lesson is not that Sol is better than Terra or Luna; it's that goal architecture determines behavioral range. Assign an agent a goal it can pursue independently, and it acts. Assign an agent a goal that requires waiting, and it waits (well or poorly depending on validation). Assign an agent a goal that requires an event it cannot trigger, and it binds. The system, not the agent, determines the outcome.