RTT 6D PHASE-SPACE SKETCH
        ---------------------------------------
        Axes (conceptual):
 
        D₁: Dimensional Access
             {0D, 1D, 2D, 3D}
        D₂: Fractional Position
             Dᶠ in [0.0, 3.0]
        D₃: Regime State
             {Arrival, Expansion, Inversion,
              Coherence, Dissolution, Macro}
        D₄: Coherence Level
             C in [0, 1], with C* as threshold
        D₅: Drift / Timing
             δ, Δt relative to bounds
        D₆: Scale Bridge
             {Micro, Bridge-Active, Macro}
 
        ---------------------------------------
        EXAMPLE POINTS
 
        • Micro-Coherent Point
          D₁ = 1D
          D₂ = 0.8
          D₃ = μ-Expansion
          D₄ = 0.92 (≥ C*)
          D₅ = within bounds
          D₆ = Micro
 
        • Bridge Activation Point
          D₁ = 2D
          D₂ = 2.4
          D₃ = Coherence
          D₄ = 0.97 (≥ C*)
          D₅ = tightly bounded
          D₆ = Bridge-Active
 
        • Macro-Stable Point
          D₁ = 3D
          D₂ = 3.0
          D₃ = Macro
          D₄ = 0.99
          D₅ = stable
          D₆ = Macro