Presented in Fig. are the survivor functions of the empirical data for different conditions of ∆P and φ . P(W > w) represents the probability of finding a clog that is at least w wide while P(L > l) represents the probability of finding a clog that is at least l long. When P = 1, all clogs are W > w or L > l; essentially, the probability of clogging is 100%. As w or l increase, fewer clogs are found that meet the criteria, and the probability of finding a clog P decays. Interestingly, the shapes of the survivor function curves in Fig. are reminiscent of survivor functions obtained in a system of active, flagellated swimmers jamming a microfluidic bottleneck constriction, reflecting a similarity in the underlying statistical processes .