At first glance it seems quite surprising to suggest that two levels of theory as seemingly different as CCSD(T) and ωB97X, based on dramatically different physical assumptions, could be linearly related. A few factors help to explain this. First, one can formally relate two levels of theory using parameters from the multitask model, but doing so requires that the weight matrices of the final layer are invertible, which may not be the case; any parameters from the latent space which are given zero weight by one output head and nonzero weight by another will lead to a non-invertible mapping. Further, the transformation operates on atomic energies, which are then summed, so in order to transform between levels of theory by this means one must possess a reasonable decomposition of the total energy into atomic contributions. These atomic energies are nonlinear functions of the atomic positions and may be difficult to determine. It therefore seems unlikely to us that it would be generally possible to find a transformation between levels of theory given only pairs of molecular energies.