Orthogonal Temporal Dimensions and Scale-Dependent Dynamics:
A Structural Extension of Spacetime

Modern physics treats time as a single scalar dimension, yet several unresolved tensions, including scale-dependent causality, parity asymmetry, and the differing temporal behavior of quantum, classical, and cosmological systems, suggest that the conventional one-dimensional treatment of time may be incomplete. This presentation explores a structural extension of spacetime in which time possesses three orthogonal degrees of freedom, while the familiar three spatial dimensions show as an effective projection of this temporal manifold.
Avoiding proposing additional spatial dimensions, this approach introduces three temporal coordinates whose relative dominance depends on physical scale. In this view, microscopic particle interactions, macroscopic inertial behavior, and galactic or cosmological evolution may be governed by distinct but coupled temporal axes. The approach preserves local causality while allowing global anisotropies in temporal structure that could offer alternative interpretations of chirality, acceleration-dependent phenomena, and scale-linked symmetry breaking.
The presentation outlines the geometric intuition, a simplified metric formulation, and conceptual parallels to multi-scale behavior observed in plasma and space physics, where different dynamical regimes coexist within a unified system. Potential observational consequences and falsifiable predictions will be discussed, including possible signatures in high-acceleration environments, parity asymmetries, and scale-dependent inertial effects. The goal is to investigate whether an expanded temporal geometry can provide a unifying structural language for phenomena that currently appear disconnected across physical scales.