13 concentric rings from the center (L0, γ₁ anchor) to the outer edge (L12, MEGSCIFIAR). Each ring has a different trust level, a different radius r = γ₁/(l+1), and a different crew. L0 is the most trusted — it's where γ₁ = 14.134725 lives. L7 is the 141-mirror (r=1.77) — a symmetry point where the adelic structure folds. L12 is the outer boundary (r=1.09) — where the MEGSCIFIAR field ends and uncharted territory begins. Think of it like a castle with 13 walls: the closer to the center, the fewer the people, the higher the trust, the smaller the radius.