both physical and cognitive; In DSRP, the reference is made to the idea that DSRP is a "physico-cognitive theory" to explain that DSRP applies to real-world, physical material things in the same way that it applies to cognitive things; in this sense, DSRP is a mathematical construct that describes both the phenomena across disciplines.
- Cabrera, D., Cabrera, L. (2020). Any Person, Any Study: A Different Kind of Theory of Everything (ToE). Journal of Applied Systems Thinking (20) 9.
- Cabrera, D., & Cabrera, L. (2008) “Distinctions, Systems, Relationships, and Perspectives (DSRP): A Theory of Thinking and of Things.” Journal of Evaluation Program Planning 31, no. 3: 311-17.