Table 1 Parameters used in the simulations

Figures	Confinement	L	D	ϵ₀	ϵ_w	f₀	Φ
3d	Circular Arena	-	20	0.4	400	0.4	0.45
3e	Circular Arena	-	20	1.0	1000	1.0	0.45
3f	Circular Arena	-	20	2.0	2000	2.0	0.45
4a, 5a	Periodic Boundaries	160-106	-	1.0	-	0.2–5.0	0.31–0.70
4b,e	Periodic Boundaries	125	-	1.0	-	1.8	0.50
4c,f	Periodic Boundaries	125	-	1.0	-	3.0	0.50
4d,g	Periodic Boundaries	125	-	1.0	-	4.0	0.50
5b,f	Periodic Boundaries	160	-	1.0	-	3.0	0.31
5c,g	Periodic Boundaries	132	-	1.0	-	1.0	0.45
5d,h	Periodic Boundaries	120	-	1.0	-	3.0	0.55
5e,i	Periodic Boundaries	106	-	1.0	-	3.0	0.70

L is the size of the simulation box, f₀ is the reduced activity, and Φ is the packing fraction, with Φ = Nπd²/(4L²) for periodic boundary conditions and Φ = Nd²/D² for the confining arena. Other parameters that are the same in all simulations are τ₀ = 0.1, d = 1.

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