Wednesday, 24 September 2025

Models and Meaning: What Physics Is (and Isn’t) Saying

Physics is often described as the search for objective truth: to uncover the fundamental structure of the universe. Its models — equations, geometries, field theories — are treated as mirrors of reality, or at least as approximations that converge toward the real.

But from a relational ontology, this representational view of models becomes problematic. Physics doesn’t reveal reality as it is — it offers systemic construals: coherent patterns that organise potential for action, measurement, and meaning within particular relational constraints.


1. From Representation to Construal

  • A model is not a mirror of the world but a structured construal — a system of meaning that frames what is possible and intelligible,

  • Equations and diagrams are perspectival artefacts, shaped by what we choose to treat as entities, variables, and interactions,

  • There is no “view from nowhere” — all modelling involves positionality and selection.


2. What a Theory Is: A System of Potential

  • In relational terms, a theory is a system of constrained potential: a framework that delimits what kinds of phenomena can be brought forth,

  • Models do not describe things, but enable transitions — they coordinate behaviour across contexts by stabilising coherence,

  • The success of a model doesn’t prove its truth, but reflects the robustness of its affordances within particular regimes.


3. Limits of Formalism

  • Formal systems are powerful tools for constructing internal consistency,

  • But they are always anchored in choices of perspective: what is held constant, what is allowed to vary,

  • No model — however mathematically complete — escapes the relational nature of construal.


4. The Real as That Which Resists

  • Reality is not what the model captures, but what constrains the model’s coherence,

  • Models fail when their assumptions no longer afford stable construals — and this failure is how reality shows itself,

  • The model is not a window onto the real, but a negotiation with the real through the tensions of constraint.


Closing

Physics is not uncovering the furniture of the universe. It is staging fields of intelligibility — constructing systems that coordinate interaction, explanation, and action.

What makes a theory powerful is not that it represents reality, but that it operates effectively under constraint — that it enables systemic coordination across domains without collapsing into contradiction.

In the next post, we will turn to the role of measurement — not as the reading of a pre-existing property, but as a punctualisation of potential within a relational field.

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