plot (0,0) · example · gen 0 · fitness 0.500
Two travelling radial wave sources orbiting each other; their interference is mapped through the luminance ramp.
The oldest plot. Two fronts pass over it and never arrive. 两股锋面在此交汇，从不落地。 Everything downwind of here inherits its rhythm.
Written by hand to fix the contract. Closed form in t, so the loop is exact rather than approximately exact. The interference nulls are the composition; the ramp only reports them. 手写的第一颗种子。用闭式解表达时间，循环因此是精确的。