In that case, why do you keep insinuating that control theory is useful as a high-level model of intelligence? That seems analogous to deriding computational neuroscientists for not using neurons in their models.

ETA: By comparison, evolutionary psychologists can't do the math yet on the selective advantage of genes coding for variations in mental traits, but their derived models of human psychology allow them to make significant predictions that weren't thought of without the model, and which often check out in experiments. Does PCT have any novel experimental consequences that have been verified?