Complex contagion (Watts 2002): adoption requires a threshold fraction φ of neighbors. Unlike simple contagion, clustered networks can impede global cascades — bridges carry insufficient social reinforcement. Toggle network structure to see cascade vs. no cascade.
Cascade Progress
Adopted: 0 (0%)
State: waiting
Theory: global cascade possible when vulnerable cluster spans network. Large ⟨k⟩ → harder cascade (more neighbors needed). Clustering helps local spread but blocks global.