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PART II · FORCE1 / 7
CH1 · FORMATION

GRAIN
the indivisible unit

CH1 · FORMATION

STABILITY
three below the limit

CH1 · FORMATION

TOPPLE
the fourth grain changes everything

CH2 · AVALANCHE

AVALANCHE
cascades without memory

CH2 · AVALANCHE

SELF-ORGANIZED
criticality without tuning

CH2 · AVALANCHE

FRACTAL
the boundary of the pile

CH3 · FRACTAL

SCALE-FREE
the same at every magnification

CH3 · FRACTAL

DOMAIN
two piles that cannot merge

CH3 · FRACTAL

COLLISION
where two frontiers met and stopped

CH4 · BOUNDARY

BOUNDARY
the last cell to be claimed

CH4 · BOUNDARY

DETERMINISTIC
no randomness was ever needed

CH4 · BOUNDARY

THE SHAPE
from one rule, one billion times