The document discusses tangible interaction design and how it relates to space and place. It presents a framework for designing tangible interfaces that are embedded in real space. The framework focuses on how tangible interfaces take up physical space, how users must move through real space to interact with them, and how interactions can become performative when observable to others in shared spaces. The framework also addresses how software defines virtual structures while physical space defines physical constraints, and how allowing bodily rituals can enhance user experiences. An example project of a mobile app for exploring an historic estate is discussed in the context of the design framework.