Fractal fern
Interactions
- drag a corner of one of the fern's four frames: that map changes and the whole fern re-condenses into another plant, then springs back
- click the tree: its leaves fall, it shrinks to a seedling and grows again by the next rule set with a new seed
- click the coast: the Koch construction adds a level and the dividers measure it
- move the pointer: wind for the tree's crown, its falling leaves and the fern