Summary
Level Logic:
- 0: Natural; 1: Minor departure
- 2: One major anomaly or marginal NG
- 3: Multiple majors or strong NG + no/weak coma
- 4: (3) + ≥1 techno-signature candidate
- 5: (4) + passive technology indicators
- 6: Active technology (maneuver/EM/sub-probe/light)
- 7: (6) + responsive behavior or ambiguous/hostile intent
- 8–10: Confirmation + impact tier (not modeled)