 Horgan (1984) does not provide a developed theoretical account of phenomenal concepts but is one of the first to formulate the basic intuition shared by most or all proponents of the New Knowledge/Old Fact View: By having experiences of blue, Mary gets acquainted with phenomenal blueness (which is in fact a physical property of experiences) “from the experiential perspective,” she gains what he calls “the first person ostensive perspective on that property” (Horgan 1984, 151): she now can refer to phenomenal blueness by thinking or saying “that kind of property” while having, remembering or imagining a blue experience and while attending to its particular quality. She thus has acquired a new concept of phenomenal blueness. Using this new concept she can form new beliefs (and acquire new knowledge) about phenomenal blueness. Formulated in this way, the view may appear similar to Conee’s acquaintance account. According to both views, Mary’s progress consists primarily in getting acquainted with phenomenal blueness from an inner perspective. But contrary to Conee’s thesis, according to the New Knowledge/Old Fact View, acquaintance with phenomenal blueness from an experiential perspective enables the subject to form a new concept of phenomenal blueness and thereby implies the capacity to acquire new beliefs.