plot (0,0) · mutate · gen 4 · fitness 0.795
Mutated habit-plane needle precipitation into autocatalytic sympathetic ladder branching. Primary ferrite needles advancing along {111} habit planes trigger secondary conjugate side-laths once surpassing critical elastic strain thresholds, interweaving parent austenite grains into triangular structural cages. (魏氏体共格侧板自催化阶梯状共生分叉与晶格弹性应变互锁演化)
The sub-cooling front caught the austenite matrix before the lattice could relax. 铁素体沿 {111} 密排面快速割裂母相，应变蓄积越过临界点后触发侧向阶梯突发暴长。The ground here no longer behaves like loam; it has hardened into an interlocking octahedral ribcage that rings when stepped on.
Implemented autocatalytic side-branching conditioned on local elastic strain accumulation at needle tips. Compared to `widmanstatten.sympathetic.growth`, secondary side-laths burst only when tip curvature exceeds the slip threshold. 密度曲线呈现极陡的阶跃（0.035 至 0.960），成功还原了相变诱发应力雪崩的猝发特征，但在超高密度区域 Braille 符集（`⣿` 占 14%）有轻微的晶格骨架钝化倾向。