What question did this study set out to answer?

To establish a framework that connects observable phenomena to the underlying causal structure of the universe.

April 23, 2026Open Access

A Unified View of Causal Structure from Accessibility

Key Points

To establish a framework that connects observable phenomena to the underlying causal structure of the universe.
Proposed a causality-first framework based on accumulated structural evolution.
Introduced external perturbations as probes to measure observable corrections in causal structure.
Derived relationships between perturbations and observable quantities through mathematical formulation.
Established a criterion to distinguish static from dynamically evolving causal structures.
Showed that observable corrections can be expressed in terms of perturbations with scaling laws.
Demonstrated relationships between external perturbations and their impact on observable quantities.

Abstract

We propose a causality-first framework in which physical observables arise from accumulated structural evolution. The universe is described by a causal structure C, where observable quantities are determined by the evolution of connectivity: δφ ~ ∫ (∂w/∂t) dt Introducing a small external perturbation h as a probe, the leading observable correction takes the form: Δφ = Ah + Bh² with temporal scaling: B(T) ∝ T² This establishes a minimal, falsifiable criterion distinguishing static from dynamically evolving causal structures, without introducing additional particles or fields.

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