 One option for preserving the force to the Dutch Strategy argument for the Rule of Conditionalization as given is to insist that ideally rational agents will always obtain evidence in a learning scenario that forms a partition, which is a view that Gallow plausibly attributes to Lewis (1999). Even if this is right for highly idealized epistemic agents, it leaves the status of the Principle of Conditionalization unclear in more ordinary circumstances and so fails to establish the principle as a general norm. Moreover, such a defense of conditionalization would depend upon more than just the claim that vulnerability to a Dutch Strategy involves irrationality, but also upon the claim that there are rationality constraints on possible learning scenarios.   