One Tension, All Physics: A introduction to the YY Geometry

Imagine a universe where all forces, particles, and fundamental constants are not separate ingredients, but symptoms of a single, elegant cosmic tension. This is the starting point of the Yin-Yang (YY) Cosmological Model, a bold proposal that seeks to retell the story of the cosmos from minimal geometric principles.

Instead of beginning with four fundamental forces, point particles, and a flexible spacetime, the YY model proposes that all physical reality emerges from the dynamic interplay between two complementary principles:

• Yin: the tendency to contract, curve, and concentrate.

• Yang: the tendency to expand, record, and dissipate.

The stage where this tension balances is a three-dimensional membrane called the "Now," with a fixed, minimal thickness. What we perceive as matter (protons, electrons) are "resonance cavities" in this membrane, and forces (gravity, electromagnetism) are simply different modes of local tension relief, guided by a single law: the Principle of Least Accessible Energy (PMEA).

The arrow of time and the very expansion of the universe receive a radical geometric interpretation: time arises from the counting of discrete "ticks" from a minimal angular slip (the slip), and cosmic expansion is actually the growth of the "memory archive" in Yang, where the entire history of the universe is irreversibly recorded.

In this document, you will discover how the YY model:

• Unifies forces and matter by reinterpreting them as projections of a single geometric tension.

• Derives fundamental constants (like the fine-structure constant α and the gravitational constant G) from simple geometric relationships and integers, not as arbitrary parameters.

• Reinterprets time and cosmic expansion, proposing an ontology where only the present is dynamic and the past is a static archive.

• Offers an elegant solution to the "Hubble Tension", explaining the difference in expansion measurements as a geometric coupling effect.

• Proposes a geometric origin for quantization, where stable particles are resonance modes that "close perfectly" in the universe's discrete cycle.

The YY Model is presented not as a finished theory, but as a geometric "conceptual laboratory" – an invitation to rethink the foundations of physics from a standpoint of radical simplicity. It is a journey connecting the smallest possible scale (the Planck length) to the cosmological vastness through a unified and visually rich narrative.