🧱 RTT Micro‑Core — Substrates

The minimal substrate categories required for modeling change

🎯 Purpose#

The Micro‑Core defines substrates as the irreducible contexts in which any system can exist or transform.
A substrate is not a material — it is a structural condition that supports patterns, coherence, and change.

The Micro‑Core recognizes three substrates.

1️⃣ Physical Substrate#

Patterns grounded in material constraints.

The physical substrate includes:

• spatial structure
• energy and matter flow
• boundary conditions
• physical interactions

Physical substrates provide hard constraints on what patterns can form.

2️⃣ Cognitive Substrate#

Patterns grounded in interpretation and meaning.

The cognitive substrate includes:

• attention
• memory
• interpretation
• internal models

Cognitive substrates provide adaptive constraints — patterns change based on interpretation.

3️⃣ Synthetic Substrate#

Patterns grounded in constructed rules and architectures.

The synthetic substrate includes:

• algorithms
• symbolic systems
• artificial architectures
• engineered constraints

Synthetic substrates provide designed constraints — patterns follow explicit rules.

4️⃣ Substrate Relations (Micro‑Core Form)#

Substrates are not isolated.
They form a minimal triad of transformations:

Physical → Cognitive → Synthetic → Physical …

This cycle is substrate‑neutral and applies at all scales.

5️⃣ Substrate Notes (Micro‑Core Constraints)#

Minimality#

Only three substrates are required to model all RTT transformations.

Neutrality#

Substrates do not imply hierarchy or value.

Composability#

Systems may operate on one substrate or across multiple simultaneously.

Regime‑Independent#

Substrates exist regardless of regime; regimes describe state, not substrate.

Dimension‑Independent#

Substrates support 0D–3D patterns without modification.

6️⃣ Micro‑Core Summary#

These three substrates form the minimal structural foundation for all RTT modeling.

If you want, Copilot can continue with:

• /docs/rtt/micro_core/dimensions.md
• /docs/rtt/micro_core/regimes.md
• /docs/rtt/micro_core/coherence.md