““These thinkers establish the presence of human activity (A5) in experience in other ways than Kant’s strategy of positing a difference between the way the world appears to us and the way it really is (R1); namely, by noting (A3 Ontological Pluralist) differences among historical periods (Hegel), among the experiences of various kinds of people (Nietzsche), or between tools and objects depending on whether we use or stare at them (early Heidegger). These differences are linked to some form of human agency in order to show A5.””