Critical Percolation Hull Walk
Site percolation at p_c ≈ 0.5928 — cluster boundaries, fractal dimension d_f = 7/4
Critical site percolation: p_c ≈ 0.5928 (square lattice) | External hull: d_f = 7/4 = 1.75
Total perimeter: d_f = 7/4 | SLE₆ is the scaling limit (Smirnov 2001)