Excerpt: The concept of constraints enabling action is not at all new. Games have rules that enable the play. Focus on any one thing enables effective action through excluding what we might consider distractions or irrelevancies. Creating a computer simulation model enabled us to consider the implications of some relations by explicitly choosing them and not others. However, on thinking about uceps as enabling constraints I came to see them as a way of pointing at something fundamental to us as biological beings living in language and embedded in a culture. I wish to address the idea of constraints that serve as possibilities in this paper. I will discuss how cognition, language, and culture all serve as constraints that enable action in given contexts, while at the same time obscuring other possibilities that we could be dancing with.