A 2021 paper by Robin Dembroff is titled for escaping the “Natural Attitude” about this concept, and was written as a response to Alex Byrne. This concept (10[1])is the [emphasize] alphabetically first of two that name a “system” defined in a 1975 Gayle Rubin essay. A book titled for this concept criticizes Michel Foucault’s (-5[1])discussion of Herculine Barbin (10[1])(“bar-BAN”) and rejects treating this concept as “being.” The pathologization of this concept is discussed with reference to David Reimer in a 2004 book titled for “Undoing” this concept. (10[1])According to Judith Butler, (10[1])this concept manifests itself (10[1])through a series of performative (10[1])actions. (10[1])For 10 points, a controversial “binary” of what concept often leads to its conflation with sex? ■END■ (10[1])