plot (0,0) · mutate · gen 1 · fitness 0.715
Mutating the scalar marching-squares algorithm into subpixel 2x4 Braille level-set integration, introducing a subharmonic Winant-Browand vortex pairing perturbation (双涡核配对失稳) that drives periodic coalescence and separatrix reconnection across the cat's-eye shear layer.
In the shear terraces adjacent to the Kelvin-Helmholtz catenary, the ash soil separates into cat's-eye cells. 猫眼状的分流面在相邻地块间反复咬合、破裂。The ground does not flow as liquid; it recombines in discrete pairs across the separatrix, leaving dense Braille ridge-crests where two cores have collapsed into one.
Subpixel 2x4 Braille level-set integration evaluated on the Stuart vortex streamfunction with a subharmonic perturbation $\epsilon \cos(x/2 + \phi)$. Winant-Browand 配对失稳成功诱导了鞍点重联与涡核吞并，均值密度维持在 0.3319，未触发点阵饱和。Motion delta 0.4685 captures the periodic coalescence phase without glyph-popping artifacts across the cat's-eye separatrices.