CONCEPT
Structural Coupling
Varela and Maturana's technical concept for how organisms and environments <em>co-evolve through mutual perturbation without either determining the other</em> — the history of interaction that constitutes both an organism's biography and an environment's transformation.
Structural coupling names the specific relationship between an autopoietic system and its environment. The environment perturbs the organism; the perturbation triggers a structural change in the organism; but — and this is the critical point — the environment does not specify the change. The change is determined by the organism's own organization. The environment triggers; the organism determines. Over time, this trigger-without-specification produces a history of mutual adaptation: the organism adapts to the environment through cumulative structural changes; the environment is altered by the organism's activity; and the ongoing interaction produces a specific, contingent, unrepeatable fit that constitutes both the organism's biography and the environment's particular configuration.
In The You On AI Field Guide
Structural coupling occupies the precise middle ground between two errors: environmental determinism (the environment shapes the organism unilaterally) and cognitive constructivism (the organism creates the world). In structural coupling, both shape each other continuously through mutual perturbation, and neither determines the outcome independently. The outcome is the history itself
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