Comment on “Terahertz pump–probe of liquid water at 12.3 THz” by F. Novelli, C. Hoberg, E. M. Adams, J. M. Klopf and M. Havenith, Phys. Chem. Chem. Phys., 2022, 24, 653–665
The interpretation of the data presented by Novelli at al. as the nonlinear response of water is questioned.