 What of [P2]? Setting aside non-reductive accounts of testimony, independent calibrations look unlikely to succeed for the full range of philosophically relevant intuitions, at least given the more constrained accounts of intuition above. The primary reason is the lack of overlap between the contents of intuitions and those beliefs justified by suitably independent sources. One doesn’t, it seems, use one’s senses to discern if some hypothetical case is a case of knowledge or right action or a case in which the hypothetical entity is conscious or in which two temporally distinct persons are the same person. As well, while perception may indicate the truth of some proposition and hence its possibility, it seems incapable of itself demonstrating the possibility of non-actual truths or the necessity of any proposition.