Interestingly, O'Brien holds up my model to illustrate a style of theorizing that, borrowing from Joseph Schumpeter, he calls the Ricardian Telescope. By this O'Brien means an inappropriate Ricardian preoccupation with long-run equilibrium conditions that distracts us from the possibility that these conditions may not always be satisfied and that deviations from long-run equilibrium conditions could be cumulative. In making this charge against my model, O'Brien does not seem to have grasped it quite correctly. In addition, he seems insensible of the paradox latent in a charge that an account of classical monetary theory could be unfaithful to the original because it too closely follows the theoretical style of the premier theoretician of classical economics.