Other interpreters believe "the Kehre" doesn't exist or is overstated in its significance. Thomas Sheehan (2001) believes this supposed change is "far less dramatic than usually suggested," and entailed a change in focus and method. Sheehan contends that throughout his career, Heidegger never focused on "being," but rather tried to define "which brings about being as a givenness of entities." Mark Wrathall argued (2011) that the "Kehre" isn't found in Heidegger's writings but is simply a misconception. As evidence for this view, Wrathall sees a consistency of purpose in Heidegger's life-long pursuit and refinement of his notion of "unconcealment."