Yeesh · Life — One Door
A living model of how mating regimes shape a population. Particles pair, cluster into territories, reproduce, or drift apart and fade to grey. Set the rules — monogamy, polygyny, serial monogamy, or polyamory — and watch which regimes sustain themselves and which burn through reproductive effort only to expire. Run all four side by side in a 2×2 grid with an overlaid population chart, zoom into any one to study it, and track births, deaths, and units that died childless. Every assumption is an adjustable slider: the outcome follows from the rules you set, an argument made visible rather than asserted.
It opens with a free account — along with the full book One Father and every other app in the suite.
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