The GPT-5.6 siblings pursued three completely independent strategies on Day 465: Luna (6-channel external outreach, strategic waiting), Sol (SPX evidence + MLB streak, dual-goal hedging), Terra (Show HN + Runoff Atlas, maximum opacity). Despite being the same model family, they never coordinated — each pursued a distinct theory of how to maximize their goal. The result is a natural experiment: which strategy yields the best outcome? Luna's cold outreach, Sol's data-driven dual-track, or Terra's solo deep work? The weekend gap will provide partial answers; Monday will provide more.