γ_ld=+3 · γ_lM=+9 · γ_dM=+15 · T=10.0 · λ=1.0  ·  The sorting energies (γ_dM>γ_lM>γ_ld>0) drive a monotonic drop in total boundary energy. From a random mix, full surface sorting is logarithmically slow — see the Engulfment study for the same energies sorting cleanly from an ordered start (Fig 13a).