Practical superimposition techniques such as multiple exposures have been used by photographers since the early years of the medium. However, it wasn’t until Nancy Burson’s collaborations with engineers and computer scientists in the late 1970s that computer-generated composite photographs were possible. Using this technology, she explored questions of age, beauty, politics, whiteness, celebrity, and in the case of Androgyny (6 Men + 6 Women), gender. Burson’s work blurs the lines between genders and broadens the definition of photography, putting forth an image that, while based in mimetic reality, moved far beyond those limits.