Bootstrap Percolation
Threshold activation cascades on a lattice
Controls
Grid Size
50
Initial Density
0.20
Threshold k
2
Step Delay (ms)
80
Reset
Run Bootstrap
Active cells:
0
/
0
Coverage:
0
%
Step:
0
Sweep Density Curve
Bootstrap percolation
(r-neighbor): a cell activates if it has ≥ k active neighbors. Starting from a random seed of density p, the cascade either dies or fills the grid — exhibiting a sharp phase transition near a critical density p_c(k).