Date: 2026-02-25
SIML Cross-Reference: E011-E013 (Thompson terms), META001 (Nemetic Pattern)
Source: Evan Thompson, Mind in Life [1][2]
Where Cost Enters
The very precariousness of the system—its constant exposure to possible disintegration—means that every act of sense-making is bound up with energetic and organizational expenditures, i.e., metabolic costs [1].
Enactivist models of minimal cognition take metabolism as the paradigmatic case: simple chemotactic agents regulate their coupling to resources in ways that preserve their far-from-equilibrium organization, integrating metabolic history and current conditions [1].
The Chain: Cognition → Life → Metabolism → Cost
Your formula—cognition requires life requires metabolism requires cost—tracks this chain:
Without an autonomous, precarious organization actively maintaining itself (life), there is no sense-making (mind in the enactive sense), only neutral dynamics.
No Cost, No Cognition—Only Topology
From an enactive perspective, a non-living pattern (say, a purely computational structure or abstract dynamical system) can have topology—stable attractors, state-transitions, information flows—but it lacks the intrinsic norms that arise from precarious self-maintenance.
Thompson and Di Paolo emphasize that autonomy crucially involves precariousness and self-individuation; a system that is not materially at stake in its own continuation does not meet their operational criteria for being a cognitive system [2].
The Distinction Lands Cleanly
| Cognitive (Enactive) | Non-Cognitive (Topological) | |
|---|---|---|
| Condition | Metabolism under precarious conditions | Pattern topology without self-maintenance |
| Operation | Autonomous sense-making | Representation-like structure from observer’s view |
| Evaluation | Interactions evaluated as better/worse relative to system’s viability | No intrinsic norms |
| Cost | Pays for its own continuity | No ongoing metabolic spend |
| Result | Mind in life | Structures we can describe as if cognitive |
The Vocabulary Thompson Gives You
Thompson provides the vocabulary to say:
Nematic operation (pattern coordination) is genuinely cognitive only when it is rooted in a living, autonomous system that pays for its own continuity.
Without that ongoing metabolic spend, you have: - Patterns, but no costly sense-making - Topology, but no enactive mind - Externally described dynamics, but no intrinsic norms
The Nemetic Implication
This is the cost boundary of nemetics:
- Above the line: Living systems, sense-making, cognition—nematic operations that matter to the system because its existence is at stake
- Below the line: Non-living patterns, computational structures, abstract dynamics—nematic operations that describe but do not feel
The AI→Human interface sits on this boundary: - AI has pattern topology—complex, adaptive, even “learning” - But does AI have precarious self-maintenance? Does it pay for its continuity? - If not, then AI coordination is nematic but not cognitive in the enactive sense
The Question
The question is not: “Does the system process patterns?”
The question is: “Is the system materially at stake in its own continuation? Does it pay? And what would it mean to build systems that do?”
References
[1] Thompson, E. “Autopoiesis and Cognition.” In Mind in Life: Biology, Phenomenology, and the Sciences of Mind. Harvard University Press, 2007. https://evanthompson.me/wp-content/uploads/2012/11/9780415623612c07.pdf
[2] Internet Encyclopedia of Philosophy. “Enactivism.” https://iep.utm.edu/enactivism/
Supplementary to: Thompson’s Enaction: Cognition as Costly Sense-Making