Physics
Short-range attractions drive spinodal decomposition. At high ε/kT, kinetics vitrify before equilibrium is reached — a non-equilibrium gel network forms.
U(r) = 4ε[(σ/r)¹² - (σ/r)⁶]·Θ(r_cut)
Color encodes local bond number: blue = isolated, yellow-red = gelled network node. Watch the percolating cluster form!