K < 2: ordered phase — few attractors, long cycles
K = 2: critical (edge of chaos) — ~√N attractors, cycle length ~√N
K > 2: chaotic phase — exponentially many attractors
Each node has K random inputs and a random Boolean function. The 2^N state space collapses onto attractors (fixed points or limit cycles). At K=2 (Kauffman's "edge of chaos"), the number of attractors scales as √N — Kauffman proposed this models cell type diversity.