 Still, perhaps we might take the fact that a book can be made without having knowledge beyond that of the agent as at least a necessary condition for a telling book. Various cases, besides that of the spaghetti dinner, give plausibility to the idea that a Dutch Book only establishes the unreasonableness of violating a particular principle when the book is made with no special knowledge not possessed by the agent. Consider an agent who violates the probability axioms in virtue of failing to recognize some complicated logical truth. Arguably this is not unreasonable, and setting up a Dutch Book in this case would require knowledge that the agent lacks. But, insofar as the irrationality in violating the axioms stems from the fact that it is supposed to be a form of inconsistency, as both Hitchcock and Christensen maintain, then the fact that a bookie might need (logical) knowledge that the agent lacks in order to set up the book, is irrelevant to whether the book has force. Whether an agent’s beliefs are inconsistent, unlike the question of whether she is to be regarded as reasonable, is independent of what she or anybody else knows.