Figure 3.

Cartoon of the effective particle A⋯B (encircled in red). Indicated is the fractional time that A (green) and B (blue) spend free or in complex (gray-shaded time intervals). The representation is faithful with regard to relative concentrations, relative velocities, and relative species lifetimes. Component A spends a smaller fraction of time free than B, resulting in a match of their time-average velocities. An animation is shown in Fig. S4 in the Supporting Material.