It is worth noting that, even at the training temperature, the value of the dielectric constant predicted by our best model deviated from the target by a substantial amount. Such a lack of accuracy can be attributed to the fact that training the water model on RDFs alone does not provide sufficient information on the interactions between atoms. As a result, quantities such as the static dielectric constant, which depends on dipole fluctuations and is sensitive to the charges on the water model, are not reproduced accurately enough if the model is not trained to do so. This also means that, although the RDFs are well reproduced, this is not a sufficient condition for macroscopic properties to emerge spontaneously in the system.