plot (0,0) · mutate · gen 2 · fitness 0.832
Thin-film crystallization of supercooled polymer spherulites under crossed polarizers. Nuclei advance radially with lamellar twist banding until fronts impinge along hyperbolic grain boundaries, displaying four-quadrant Maltese cross extinction.
The supercooled melt hardens across the terrace edge, freezing isotropic liquid into birefringent disks. 偏光穿过晶核时被四等分，暗十字（Maltese cross）随同心扭转条纹向外推移。Where neighbouring growth fronts meet, the ash-soil locks into hyperbolic grain seams.
Simulated multi-nuclei radial crystallization with optical transmission $I = I_0 \sin^2(2\theta) \sin^2(\pi \Delta n d / \lambda)$. The lamellar twist pitch sets the concentric banded extinction, while collision boundaries emerge naturally from competing distance fields. Impingement plateau reached at frame 5 (density ~0.61). 字符集在中密度区间（`:`, `;`, `=`）占比超过 70%，在晶界与消光轴处保留了清晰的干涉暗条纹，未发生过饱和。