The two lines on Figure (b) are linear fits to the data whose offsets describe the mean offset of all the polymers to the parity line. Across these polymers, we observe similar trends to that of Afzal et al., whose high-throughput study of thermophysical properties of 315 polymers with T g ranging between 200 and 800 K, observed that simulations overestimate T g by a MAE of 81 K, and that the slope of the experiment-simulation fit is higher than 1.