Introduction · 4 of 4How the fields connect

Different sciences. One connected reality.

If existence follows a shared relational structure, we should be able to trace it across the subjects we study. The atom in chemistry is also part of the living cell in biology. The subjects have boundaries; the things they describe have relationships.

The same question, at different scales.

Y-Theory follows what makes a distinct thing possible, how its parts work together, and how it remains itself while changing. These questions carry across scales without making an atom, a cell, and a person identical.

Quantum & classical physics: Particles, fields, motion, and interactionWhat allows a physical identity to form and persist?
Cosmology: The universe and its large-scale structuresHow do local structures belong to a wider whole?
Chemistry: Atoms, bonds, compounds, and reactionsHow can combination produce a new identity?
Biology: Cells, organisms, and living systemsHow does a living organization maintain itself through change?

Connection does not erase detail.

Each science contributes its own observations, mechanisms, and laws. Y-Theory brings them into a common account of existence: formation, interaction, persistence, and transformation.

A shared pattern gives us something to compare. To explain a particular atom or cell, we still need to show how the relationship works there.

Now we can return to the beginning and follow the full explanation. Each relation, diagram, and simulation will be introduced in sequence, so the pattern is something to understand—not simply recognize after being told it is there.