There is a separate interesting question of whether you could exploit the nonlinearity of a network of non-ideal resistors in practice. Given that tom7 was able

There is a separate interesting question of whether you could exploit the nonlinearity of a network of non-ideal resistors in practice. Given that tom7 was able to use floating point inaccuracy as a source of nonlinearity for ML, I’m guessing the answer is probably “yes, but now your system is incredibly sensitive to stuff like ambient temperature”.