Editing Knowledge argument (section)

==== The old fact/new guise analysis ====
The response to the knowledge argument depends on whether we can accurately capture the new type of knowledge Mary gains when she leaves the room. Those who propose the ability analysis and the acquaintance analysis both agree that Mary learns something new, but they differ on whether this new knowledge can be reduced to factual knowledge or whether it requires direct experience. Another analysis, called the old fact/new guise analysis, denies that Mary learns something new at all. Instead, it suggests that Mary gains a new understanding of an old fact in a different way. This analysis depends on the idea that there are many ways to express the same fact. For example, the fact that Bruce Wayne is 6'2" tall can also be expressed as "Batman is 6'2" tall" or "Bruce Wayne mesure 1.8796 mètres" in French. Proponents of the old fact/new guise analysis argue that Mary gains a new understanding of an old fact through the acquisition of a phenomenal concept of red. They believe that Mary is now able to express an old fact about the sensation of red in a new way. However, whether this analysis is successful in responding to the knowledge argument depends on how phenomenal concepts are defined in a way that is compatible with physicalism.<ref name=":2" />