Simple equations.
Infinite universes.
Every system here is governed by rules you could write on a napkin. What unfolds when you let them run is a different matter entirely. Pick a universe and find out what hides inside the math.
The Mandelbrot set
Every point c on the screen is tested by iterating z → z² + c starting from zero. Black means the orbit stays bounded forever. Color means it escaped — and how fast.
The logistic map
One equation. One parameter. As you turn the dial, a peaceful population suddenly splits in two. Then four. Then eight. Then it shatters into chaos. This is the simplest gateway into the deep.
The Lorenz attractor
Edward Lorenz's 1963 weather model. Three coupled equations. The trajectory never repeats, never crosses itself, and never leaves a bounded region. The geometry of weather, simplified to its bones.
The double pendulum
Two rods. Two masses. Newton's laws, nothing more. For a while the twin pendulums look identical — then they don't. This is the most honest picture of chaos you can build at home.
Conway's Game of Life
Four rules, applied to a grid of cells. From them: gliders that travel, oscillators that beat, guns that fire, and patterns we still cannot predict. Computation, born from arithmetic.
Strange attractor gallery
Different equations. Same answer: structure without repetition, bounded without periodicity. Click any one to drive it. Each is computing live; each trajectory is genuinely chaotic.
Reaction-diffusion
Two chemicals on a lattice. One feeds the other. Both diffuse. From this alone you get the spots on a leopard, the stripes on a tiger, and patterns Turing predicted in 1952 before they were ever measured in a beaker.
Lyapunov fractal
At each (a, b), we run the logistic map cycling between r = a and r = b through a fixed sequence, then measure how fast nearby trajectories diverge. Warm means stable. Cool means chaotic. The boundary is where order surrenders.

