  The justifying or rationalizing role of evidence is also central to other prominent epistemological views, including views which are strictly speaking incompatible with Evidentialism as formulated above. Consider, for example, Bayesianism. (See the entry on  Bayesian epistemology.)  The Bayesian holds that what it is reasonable for one to believe depends both on the evidence to which one is exposed as well as on one's prior probability distribution. According to the Bayesian then, two individuals who share exactly the same total evidence might differ in what it is reasonable for them to believe about some question in virtue of having started with different prior probability distributions. Still, inasmuch as Bayesians often focus upon rational belief change, or on what is involved in rationally revising one's beliefs over time, the justificatory role of evidence retains a certain pride of place within the Bayesian scheme. For Bayesians typically maintain that that which distinguishes those changes in one's beliefs that are reasonable from those that are not is that the former, unlike the latter, involve responding to newly-acquired evidence in an appropriate  way.[8]  Thus, for the Bayesian no less than for the Evidentialist, it is evidence which justifies that which stands in need of justification. 