Spatial distribution of stars (mass > 0.08 M_⊙) at 1 Myr and contemporary disc-truncating encounters in our simulation. We show as coloured star or square symbols the location of all stars that underwent encounters yielding a fractional truncation −∆R_out/R_out > 0.01 over the age range 1 ± 0.2 Myr. Encounters that yielded −∆R_out/R_out > 0.1 are highlighted with red circles. In the panels along the top we show the separation between specific stars and their stellar neighbours over the first 1.5 Myr of the simulation. Each line represents the distance to a single stellar neighbour, linearly interpolated between snapshots, where neighbours that are one of the two closest stars at any given time step are included (if they pass within 10⁴ au). In each plot, we mark the location of a logged ‘closest approach’ as a cross (inferred analytically from the closest time step – see Section 3.10).