 First of all, the more traditional epistemologists would like to see Bayesians engage with varieties of skepticism. For example, there is Cartesian skepticism, which is the view that we cannot know whether an external world, as we understand it through our perceptions, exists. There is also the Pyrrhonian skeptical worry that no belief can ever be justified because, once a belief is to be justified with a reason, the adduced reason is in need of justification as well, which kickstarts an infinite regress of justifications that can never be finished. Note that the above skeptical views are expressed in terms of knowledge and justification. So, the more traditional epistemologists would also like to hear what Bayesians have to say about knowledge and justification, rather than just norms for credences.