Still, other scholars insist that Butler's background in science fiction is key to our understanding of what type of narrative "Kindred" is. Dana's time traveling, in particular, has caused critics to place "Kindred" along science fiction narratives that question "the nature of historical reality," such as Kurt Vonnegut's "time-slip" novel "Slaughterhouse Five" and Philip K. Dick’s "The Man in the High Castle", or that warn against "negotiat the past through a single frame of reference," as in William Gibson's "The Gernsback Continuum." In her article "A Grim Fantasy," Lisa Yaszek argues that Butler adapts two tropes of science fiction—time-travel and the encounter with the alien Other—to "re-present African-American women’s histories." Raffaella Baccolini further identifies Dana's time traveling as a modification of the "grandfather paradox" and notices Butler's use of another typical science fiction element: the narrative's lack of correlation between time passing in the past and time passing in the present.