We introduced the SAPT version of EDA in Section 3.1 as a means to obtain well-defined dispersion energies that are consistent with total interaction energies of CCSD(T) quality. There are numerous other EDA schemes within the quantum chemistry universe, however, and it is illuminating to ask whether any of them might clarify the physical nature of empirical dispersion corrections to DFT. That said, the inherent non-uniqueness of EDA models has led to controversy, which is perhaps inevitable given that these models go beyond prediction of physical observables.