Langton's ants write a colored substrate that gates where Conway's Life is allowed to live. Three feedback layers — ants → substrate → life → substrate → ants — produce highways, colonies, and fractal boundaries. For a playable take on Conway's Life and 50+ other rulesets, see the sister site The Arcade of Life ↗.
Layered Cellular Automata — Video
A short demonstration of the interactive lab.
Open the interactive lab → Read the full notes →