Effects of varying motor and crosslinker lifetimes, , for filaments of different lengths, L, at tf = 400 s (filled squares). (A) Contractility order parameter, radial distribution function, for mixtures of filaments, motors, and crosslinkers with ρm = 0.2 μm−2 and ρxl = 1 μm−2. (B) Polarity sorting order parameter, radial distribution function of barbed ends, for mixtures of filaments and motors, without crosslinkers. (C) Bundling order parameter, mesh size, for mixtures of filaments and crosslinkers, without motors. Normalizing quantities in (B) and (C) with respect to ⟨g(r)⟩ does not change the qualitative behaviors (Fig. S4). Error bars indicate standard error of the mean. The green dashed lines show how order parameters vary for one length, L = 10 μm, if the corresponding green squares are rescaled such that .