To differentiate between structural isomers, a descriptor that accounts for different geometric properties (for example, radius of gyration) might be constructed, since polarizability is an extensive property . This extensivity is only partially captured by atomic additive methods, insofar as increasing the number of atoms in a molecule is inherently increasing the size as well. More accurate models should also differentiate between similar atoms based on their surrounding chemical environments, as it is done for example in the self-consistent screening approach used in the Many-Body Dispersion (MBD) method . Therefore, while the shown firstorder linear model is limited by its accuracy, it can serve as a baseline for more accurate methods involving coupling between atoms in a molecule.