Composite AdS geodesics for CFT correlators and timelike entanglement entropy

We study how to recover timelike worldlines in AdS from CFT data as a toy model for holographically reconstructing realistic observers. We give a bulk extremization procedure that determines composite timelike-spacelike geodesics that connect timelike-separated boundary points. The total geodesic length matches the length extracted from CFT correlators at the timelike-separated points. We show agreement in Poincaré AdS, for generic boundary points in global AdS, and also for the Bañados-Teitelboim-Zanelli solution, in which the timelike segment probes behind the horizon. We refine related methods to compute timelike entanglement entropy in AdS 3 / CFT 2 and recover known results.