diffusion-limited aggregation

Diffusion-limited aggregation (DLA) is a process where particles move randomly, like tiny dust moats wandering in water. When these particles bump into a growing structure, they stick to it, forming complex, branching patterns. This happens because the particles are constantly diffusing—spreading out randomly—and their chance of sticking increases near the existing structure. DLA models natural formations like snowflakes, mineral deposits, and coral growth, illustrating how simple, random movement can lead to intricate, organic shapes through the process of particles attaching where they first encounter the structure.