 As an objection to Success Theory, many bring in demands on justification that are not satisfied by the most versions of the view. For instance, consider the internalist thesis that, if things seem the same to each of two people from the inside, then those two people are equally justified in their beliefs. More specifically, if two people have the same conscious perspective on the world, and the same stored beliefs, then they are the same with respect to the degree of justification of their beliefs. This sort of thesis is often motivated by considering radically deceived counterparts to us, and appealing to the intuition that such subjects and us are equally justified (Lehrer and Cohen 1983; Cohen 1984; Wedgwood 2002; for dispute, see Sutton 2007 or Littlejohn 2012). Now, if a version of Success Theory predicts that a subject in perceptual error has less justification than a corresponding perceiver, that version might be rejected on the basis of its conflict with the internalist thesis.