Formal Structure of NDR
NDR defines reality as a nested structure of domains, accessed through routing and perceived through projection. Below are the core definitions.
A bounded region of reality with its own structural conditions. Not a separate world—a region within the continuous whole. Examples: the quantum scale, a living cell, a dreaming mind.
Domains are contained within other domains, forming a layered structure. A cell sits inside a body, a body inside an ecosystem, an ecosystem inside a planet. This is not metaphor—it is structural.
The set of conditions that determine which domains an observer can reach. This includes instruments, physiology, location, energy, and state of consciousness. Access states are the 'tuning' mechanism.
The function that maps an access state to a domain. Given your current access state s, you are routed to domain d. You do not choose what exists—your conditions determine what you access.
What an observer actually perceives. A projection is a partial, structured rendering of the domain, filtered through the observer's access conditions. No observer sees a domain in its entirety.
Nested Domains Visualization
Reality is structured in nested layers, like Russian dolls. Each domain exists within a larger one. Hover over each layer to explore.
Each outer layer contains and encompasses the inner layers. You exist simultaneously at multiple nested levels—quantum, atomic, cellular, human-scale, and planetary.
Interactive NDR Equation
Click each part of the equation to explore what it means. See how your setup determines your experienced reality.
Your setup (s) gets routed (R) to a domain (d), which projects (π) a view of reality (Ω) as your experience.
Access States & Domains Explorer
Different access states route you to different domains. Click each state to see what becomes accessible.
Human Vision
Accessible in this Domain
- ✓Objects
- ✓Colors
- ✓Motion
- ✓Depth
Not Accessible
- ✗UV light
- ✗Infrared
- ✗Atoms
- ✗Quantum states
The same underlying reality (Ω) exists in all cases. Your access state determines which domain you experience and what aspects become observable.
Nested domains: d₁ ⊂ d₂ ⊂ d₃
Schematic representation of domain nesting
Informational vs. Literal Nesting
It is important to distinguish between informational nesting and literal spatial nesting. In some cases, such as cells within organisms, the nesting is both informational and spatial. In other cases, such as descriptions at different energy scales or different observational regimes, the nesting is primarily informational.
NDR does not require that all domains be literally stacked inside one another in space like boxes. What it requires is that coherent descriptions can be ordered by containment of structure, constraints, and explanatory scope. One description is contained within another in terms of what must be accounted for, not necessarily in terms of physical location.
This distinction allows the framework to remain compatible with existing physical theories while still providing a unifying language for talking about access, scale, and experience.
A Structural Framework, Not a Finished Theory
NDR is not claiming to be a complete physical theory. It is a structural framework—a way of organising and interpreting the structure of reality that can inform and guide future research.
It does not specify the exact physics of routing. It does not dictate the number of domains. It does not require any particular metaphysical commitment about what reality "is made of." What it does provide is a clear structural language for describing how different parts of reality relate to each other and to observers.
Think of it as analogous to how the concept of "natural selection" provided a framework for understanding biological change before the details of genetics were worked out. NDR provides a structural vocabulary. The detailed physics is a task for future work.
Continuity, Not Separation
A central commitment of NDR is that reality is continuous. Domains are not disconnected bubbles or parallel universes. They are regions within a single structure, related to each other by nesting and by the transitions observers can make between them.
When you fall asleep and begin to dream, you have not left reality. You have transitioned from one domain to another. When a microscope reveals cellular structure, it has not conjured a new world. It has routed your access to a domain that was always there.
This continuity is what distinguishes NDR from multiverse, many-worlds, and simulation hypotheses. There is no splitting. No copying. No external substrate. There is one reality, with more structure than any single vantage point can capture.