About this app

A live Gray-Scott reaction-diffusion simulation — the model Alan Turing proposed in 1952 to explain animal markings, twenty years before anyone could run one. Nothing in it knows about stripes or spots; there are two chemicals, two diffusion rates and two constants, and moving the feed rate by three thousandths turns a leopard into a zebra. Four presets included.

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Win rates and risk grades are computed by Masterboard from tracked trade outcomes after the strategy is assessed — not self-reported by sellers. Past performance does not guarantee future results.