edge of literature, can see. In sum, the law. The law summoning: what 'I' can sight and what 'I' can say that I sight in this site of a recitation where I/we is." By which Derrida means that not only is taxonomy a subjective sport, but due to this very fact, the place and time the taxonomical act takes place deserves further study. Then, in 1986, Ralph Cohen published a paper in response to Derrida's thoughts titled "History and Genre." In this article Cohen argued that genre concepts in theory and in practice arise, change, and decline for historical reasons. And since each genre is composed of texts that accrue, the grouping is a process, not a determinate category. Genres are open categories. Each member alters the genre by adding, contradicting, or changing constituents, especially those of members most closely related to it. The process by which genres are established always involves the human need for distinction and interrelation. Since the purposes of critics who establish genres vary, it is self-evident that the same texts can belong to different groupings of genres and serve different generic purposes. (Cohen, 204) Genre Evolution in RGS RGS scholars largely agree that while genres are indeed dynamic and constantly evolving entities, they are difficult to change. Amy Devitt describes this bind, as she considers a genre to be "both the product and the process that creates it" (580). To Devitt, genres not only respond to recurrent situations, but they construct them as well. Berkenkotter and Huckin note that "Genres...are always sites of contention between stability and change. They are inherently dynamic, constantly (if gradually) changing over time in response to the sociocognitive needs of individual users." This phenomenon makes theorizing genre evolution challenging. Carolyn R. Miller has explored the implications for genre change of the language of "evolution" and "emergence." Many RGS scholars have theorized how genres change. JoAnne Yates and Wanda Orlikowski, who introduced the importance of genre to the organizational studies and information technology fields, embedding it in structuration theory, assert that "one person cannot single-handedly effect the change of an institutionalized structure [like genre]; other relevant participants must adopt and reinforce the attempted change for it to be implemented and sustained in practice" (108). Elsewhere they argue that "the potential for genre modification is inherent in every act of communication," but that only "significant and persistent modifications of genre rules that