Calculating the coefficient of friction between two solid materials without experimental data is theoretically challenging due to the complex electromagnetic interactions at play. While some suggest using simulations or intermediary materials for comparison, the consensus is that friction cannot be accurately derived from first principles. Empirical methods remain necessary for practical analysis and theory development. The discussion highlights the limitations of current understanding and computational power in addressing this problem. Ultimately, the calculation of friction remains an unresolved challenge in materials science.
