 While some of these ideas come with a detailed “boxology” that describes the cognitive implementation of the proposal, they are generally the product of work at the more philosophical and speculative end of inquiry into the architecture of mind where evidence is at best very indirect. An exception is the suggestion that there is empirical confirmation for Wollheim’s (1998) notion of twofoldness in picture perception, according to which spectators are simultaneously aware of both the surface qualities of the picture and the depicted content. In particular, it has been argued that