Together, these results are emblematic of the fact that in 2023, thirty years after hybrid functionals were shown to afford thermochemical accuracies good enough to make chemists notice DFT, noncovalent interactions now seem to have similarly been brought into the fold. Total interaction energies for small vdW complexes, and relative conformational energies for larger organic molecules, can now be predicted within 1 kcal/mol of benchmark values, using a variety of DFT-based strategies. Geometries for small noncovalent dimers are also predicted accurately. That said, for the dispersion-dominated interactions that are characteristic of intermolecular interactions between small nonpolar molecules, the total interaction energy may itself be 1 kcal/mol. Perhaps it is simply the case that DFT cannot meaningfully distinguish these weakest interactions from zero, although the data for Kr 2 [Fig. 1(b)] provide reason for optimism. There, the benchmark interaction energy is smaller than 0.3 kcal/mol yet the best-performing functionals yield qualitatively correct potential energy profiles and total interaction energies |E int | = 0.2-0.3 kcal/mol.