The Universal & Atomic Elements of Organization
A falsifiable scientific theory proposing that the same irreducible structures organize both thought and reality — from the quantum to the social scale.
O-Theory proposes that four irreducible structures — Distinctions, Systems, Relationships and Perspectives (DSRP) — form the universal grammar of organization. Rather than being merely useful ways of thinking, these structures are hypothesized to be the atomic elements from which every organized phenomenon emerges, whether in cognition, biology, physics, mathematics, society, or the cosmos.
| D | S | R | P |
| Distinctions | Systems | Relationships | Perspectives |
| Identity ↔ Other | Part ↔ Whole | Action ↔ Reaction | Point ↔ View |
| D := (i ↔ o) | S := (p ↔ w) | R := (a ↔ r) | P := (ṗ ↔ v) |
This is a living scientific evidence compendium: an open, continually evolving collection of independent empirical research, formal theory, mathematical proofs, cross-disciplinary analyses, applications, critiques, and proposed falsifications. Every entry is included because it supports, refines, challenges, or attempts to falsify the theory.
Scientific theories are strengthened not only by evidence that confirms their predictions, but also by surviving attempts to falsify them. This compendium brings both together: independent evidence from researchers who were not testing DSRP and proposed counterexamples evaluated against the formal theory.
One counterexample is enough to falsify O-Theory. Until then, the question remains: do the same four structures organize everything from quantum systems to human thought?
Independent convergence is one of the strongest forms of scientific evidence because researchers arrive at the same conclusion while investigating different questions for different reasons.
The number is not the point. Researchers in different fields, studying different questions with different methods, repeatedly arrived at the same structural predictions—almost always without testing DSRP or using its language.
Try a different term or clear the filters.
This compendium began as the peer-reviewed literature review “A Literature Review of the Universal and Atomic Elements of Complex Cognition,” published in the Journal of Systems Thinking with 109 studies. That paper is the peer-reviewed foundation. What you see here is its living, continuously updated version . New studies are checked before they are added, and the collection now holds and keeps growing. Open any card to see what the researchers found, why it bears on DSRP, and where the original review discusses it, the fuller account.
The collection is updated continuously, so the citation carries the date you consulted it rather than a study count — the count changes weekly, and putting it in the reference would make the same collection look like a different work to everyone who cites it. To cite a single claim or study, use its own address: every one has a permanent link.
This is the adversarial half of the compendium. Where the evidence track asks what converges on DSRP, this one asks what would end it: a single organized phenomenon whose structure needs a fifth pattern, a ninth element, or a fifth structural dynamic. It holds written up from candidates across territories, and resolutions — the general answers those cases settle against. Every case is published whether it held or failed, including the ones still open.
Cite this rather than the evidence collection when the point is what survived attack. The two are separate works with separate addresses: one asks what converges on the theory, the other asks what would end it, and a reference to the first does not support a claim about the second. Case and resolution numbers change when the record is revised, so cite a case by its own permanent link rather than by number.
This collection is meant to keep growing. Send us a study, paper, book or critique that bears on DSRP, whether it supports the theory or cuts against it, and we will read it and decide whether it belongs.
Authors Prill, Patrick
Year 2025
Publisher Test Pappy (testpappy.wordpress.com)
Kind of work blog
Discipline Computer Science & AI
Secondary disciplines Systems Science
Kind of engagement public
Applied false
To answer, for a software testing audience, what systems thinking actually consists of in practice, starting from the author's position that systems thinking is basically thinking and that frameworks exist to give it structure.
One teaching episode: the author taught DSRP to his daughter by analyzing the kitchen door.
A blog post in five moves: an opening on mental models, quoting the Cabreras' definition of a mental model as information combined with organization, which he flags as recalled from memory; his own background with Donella Meadows, the Cabrera Lab podcast, Ruth Malan's Systems Seeing Adventure, and a failed 2013 attempt to use mind maps as virtual test models; a section called Doing Systems Thinking with four categories, each given guiding questions and an example from the kitchen-door exercise; and a close.
The author concludes that no single framework is the correct one, that any approach works if it helps you analyze a system and organize what you learn, and that practice is what improves it. He states that the four categories apply to any system, from whole countries to an animal, a piece of software or a bicycle.
A software tester's account of learning systems thinking, which teaches DSRP by applying it to a kitchen door with his daughter and renames the four patterns in testing vocabulary.
Prill writes for testers who have heard that systems thinking matters and want to know what doing it looks like. He credits the Cabreras alongside Donella Meadows and Ruth Malan, opens with their definition of a mental model as information combined with organization, and says plainly that he is quoting from memory. The body of the post is four categories, each a renaming of a DSRP pattern in language a tester will recognize: Boundaries and Distinctions, Elements and Parts and Whole, Connections and Relations and Actions, and Actors and Motivations and Perspectives. Each category gets guiding questions and then the same running example, a kitchen door he analyzed with his daughter while teaching her the approach. Deciding the boundary meant including the door frame but excluding how the frame mounts into the wall, because the moving door was the object of interest. Elements meant the leaf, the lock, the handle and the hinges, with the frame simultaneously a part of the wall. Relations meant tracing that pushing the handle retracts the latch bolt while the deadbolt answers only to the key. Perspectives meant the installer, the buyer, the user, and the handle itself, each making different details relevant. He also recounts an earlier failure: in 2013 he built mind maps as virtual test models, which worked until he added relationships and the diagrams became unreadable, which he reads as evidence that the system was too complex for the tool. The post makes no claim that DSRP is the right framework, only that having one and practicing it is what matters.
The strongest thing in the post is the kitchen door. Prill works all four operators on an object nobody would call a system, including taking the handle's perspective, which is the non-anthropocentric reading of point-view that most practitioner accounts quietly drop in favor of stakeholder analysis. His boundary decision is also the distinction rule used correctly: including the frame and excluding its mounting is a choice made from a purpose, and he says what the purpose was. Where the restatement loses something is in the framing. He presents the four as categories for organizing information gained about a system, which turns operators into folders; the structural claim is that each pattern is a co-implied pair, so that drawing a boundary around the door creates the not-door in the same stroke, and a category scheme has no way to carry that. His mind-map story is the clearest illustration of what the pair-structure buys and he does not connect it: the diagrams became unreadable when he added relationships because he had no way to distinguish levels, which is part-whole, and no way to fix a vantage, which is point-view.
Patterns it shows D, S, R, P
Added 2026-10-14
How to cite this Prill, Patrick (2025). Systems Thinking seems to be important, but how does it work?. Test Pappy (testpappy.wordpress.com).