The multiple-resource theory of attention represents a construct that, in its time, served to unify two fundamentally disparate views of human performance capacity. Subsequently, the theory has had a particularly strong influence on the practice of human factors, especially in system development, where it arguably remains the strongest behavioral heuristic for interface design. This confluence of contribution to both fundamental theory and practical application served to facilitate the impact of multiple resources and Christopher Wickens' influence on the domains of both human factors and experimental psychology. This chapter provides elaborations on the original theory and seeks to generate a wider vista of discourse with respect to the notion of separable components of human attention and, potentially, the individual experience of consciousness and reality itself.