Abstract When two particles collide in an asymptotically AdS spacetime with high enough energy and small enough impact parameter, they can form a black hole.Motivated by dual quantum circuit considerations, we propose bempresas.com a threshold condition for black hole formation.Intuitively the condition can be understood as the onset of overlap of the butterfly cones describing the ballistic spread of the effect of the perturbations on the boundary systems.We verify the correctness of the condition in three bulk dimensions.We describe a six-point here correlation function that can diagnose this condition and compute it in two-dimensional CFTs using eikonal resummation.