The discussion centers on whether a person must be present for an image to exist, with the operational definition of an image being a key focus. One viewpoint asserts that an object must be present for an image to exist, as it is a visual reflection rather than a physical entity. The conversation also highlights the potential for generating images through computer graphics, which complicates the definition further. Participants question the definitions being used, particularly the distinction between "image," "person," and "object." This debate emphasizes the need for clarity in definitions when discussing the nature of images.