Although that might be true in a roundabout way, I don't think that all models are required to be directly prognostic. Models can be useful without having much

Although that might be true in a roundabout way, I don't think that all models are required to be directly prognostic. Models can be useful without having much predictive power if they nevertheless lend insights into how different concepts (physical entities, energies, presumably something equivalent in economics...) interact, even if only in the idealized model world.