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'''R-Theory''', or [[Relational Holon Theory]], proposed by [[John Kineman|John J Kineman]] synthesizes [[Robert Rosen]]’s work on [[complex systems]], particularly highlighting that [[living systems]] are defined by their internal organization ([[relational complexity]]) rather than just material parts. It bridges [[Rosen’s (M,R)-systems]] (metabolism-repair) with his theory of modeling relations, establishing that organisms are causally closed and possess anticipatory, non-computable properties. This framework posits that living systems are non-mechanistic, exhibiting complex, closed-loop causalities—often termed (M, R)-systems or metabolic-repair systems—that cannot be reduced to simple, algorithmic, or purely Newtonian models.

==Key Aspects of R-Theory and Rosen's Complexity==

====Definition of Life====
Rosen defined living organisms as systems "closed to efficient causation," meaning they are self-producing and self-repairing, which distinguishes them from machines.

====Modeling Relation====
Unlike machines, organisms construct internal surrogates for time, allowing for anticipation and behavioral flexibility rather than merely reacting to environmental inputs.

====Beyond Mechanism====
While mechanisms (machines) have open, predictable causal chains, living systems are defined by complex, closed loops that cannot be fully described by algorithms, requiring, instead, a shift toward relational, non-mechanistic science.

====Synthesis of Concepts====
R-Theory integrates the mathematical description of causality (category theory) with the contextual, holistic understanding of organisms, addressing the need for a non-reductionist approach to biology.

R-Theory argues that the "functional" aspects of life are essential, suggesting that the complexity of relations—not just the number of components—defines a system's behavior and existence

==Citations==
* Kineman, J. J. (2012). R‐theory: A synthesis of Robert Rosen's relational complexity. Systems Research and Behavioral Science, 29(5), 527-538. https://doi.org/10.1002/sres.2156
* Kineman, J. (2011, September). [[R-theory: A further commentary on the synthesis of relational science]]. In Proceedings of the 55th Annual Meeting of the ISSS-2011, Hull, UK. https://journals.isss.org/index.php/proceedings55th/article/download/1713/585

[[Category: Systems Theories]]

R-Theory by John J. Kineman - Revision history

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