Strict Causality in Quantum-Geometry Dynamics: Implications for Physics

 The concept of a strictly causal universe as defined by Quantum-Geometry Dynamics (QGD) has significant implications for physics theories. According to QGD, all successive states of a particle, structure, or system are strictly and uniquely causally linked. This principle offers a way to understand the evolution of the universe as sequences of events connected by cause and effect, potentially allowing a description of evolution without relying on the relational concept of time.

Here are some key implications of a strictly causal universe within the framework of QGD for physics theories:

• Challenge to Spontaneity: Strict causality in QGD excludes spontaneity, which assumes that a particle or system can change based on probability over time without a specific cause. This challenges interpretations in other theories that might rely on inherent probabilistic behaviors without a clear causal mechanism at the fundamental level.
• Understanding the Source of Incompatibilities: QGD proposes that if reality is strictly causal, then it can be thought of as a complete and consistent axiomatic system. In this view, fundamental aspects of reality correspond to axioms, and non-fundamental aspects (observable phenomena) correspond to theorems. Incompatibilities between current physics theories arise because they are often founded on theorems derived from observations at different scales, rather than a unified set of fundamental axioms. A strictly causal framework suggests that a unified theory would require identifying the true fundamental axioms of reality.
• Possibility and Nature of a Theory of Everything (TOE): QGD's strict causality implies that a TOE is possible if it can be derived from the complete and consistent set of fundamental axioms governing the universe. However, it also suggests that achieving a TOE by simply unifying existing theories like the Standard Model and General Relativity might be mathematically impossible because they are based on mutually exclusive axiom sets. Instead, a TOE would need to be derived axiomatically from the most fundamental aspects of reality.
• Alternative to Time as a Fundamental Concept: The principle of strict causality in QGD suggests that the evolution of any system can be described without necessarily resorting to the relational concept of time. The universe changes from one state to the next due to concurrent causally related series of events, rather than evolving with time. This could lead to different formulations of physical laws that prioritize causal sequences over temporal evolution.
• Implications for Measurement and Observation: In a strictly causal universe as described by QGD, any change in a system is due to a specific cause. This perspective could influence the interpretation of quantum measurements and the role of the observer. While QGD acknowledges non-local effects, it attributes them to instantaneous gravitational interactions rather than inherent quantum randomness, suggesting a causal link even across distances. This contrasts with interpretations of quantum mechanics that emphasize intrinsic indeterminacy.
• Foundation for Axiomatic Approaches: QGD itself is presented as an axiomatic approach to physics, where the principle of strict causality is a guiding principle in choosing the fundamental axioms (such as the discreteness of space and the existence of preons). A strictly causal universe reinforces the idea that physics theories should be built from a self-consistent set of axioms that correspond to fundamental aspects of reality.

In summary, a strictly causal universe as envisioned by QGD has profound implications for how we understand the fundamental nature of reality, the relationships between different physics theories, and the possibility of a unified description of the universe. It emphasizes the primacy of causal connections and challenges the fundamental status of concepts like continuous space and time as they are often understood in other frameworks.