To answer the question posed in the introduction, we conclude that e - (aq) is not a simple spectator species, but rather is intimately coupled to, and strongly modulates, the motions of the first solvation shell waters. Previous MQC dynamics studies, which inherently miss this physics, emphasized the role of water translations and librations in the solvation dynamics of e - (aq) . Our results motivate a deeper consideration of intramolecular water motions in the dynamics of e - (aq) . Overall, we believe that this successful first application demonstrates that Flexi-BLE opens the door to studying the dynamics of many other condensed-phase species, for which a QM description of the environment is necessary.