Drift Propagation Between Systems


Abstract

Control drift does not remain confined to a single system when coupling is present. This monograph defines Drift Propagation Between Systems (DPBS) as the process through which gradual control changes in one system spread across coupled systems through signal exchange, feedback loops, and shared normalization.

We show that drift is not isolated. It becomes distributed, allowing small changes in one system to reshape entire networks over time.


1. From Local Drift to Distributed Drift

In isolated systems:

  • drift remains internal

In coupled systems:

Drift travels.

Changes in one system:

  • influence others
  • reshape shared dynamics

2. Defining Drift Propagation

Drift Propagation Between Systems (DPBS) is defined as:

The transmission and accumulation of control drift from one system to others through coupling, resulting in distributed changes across multiple systems.

Propagation involves:

  • signal transmission
  • feedback reinforcement
  • normalization

3. Mechanism of Drift Propagation

Drift spreads through:


3.1 Signal Transfer

Changes in one system:

  • alter outgoing signals

These signals:

  • enter other systems
  • influence their control

3.2 Feedback Reinforcement

Receiving systems:

  • respond to altered signals
  • send modified feedback

This creates:

  • recursive propagation

3.3 Coupled Normalization

As drift spreads:

  • it becomes normalized
  • across multiple systems

4. Gradual Expansion of Drift

Propagation is:

  • incremental
  • cumulative

Small changes:

  • expand over time
  • across systems

5. Types of Drift Propagation


5.1 Linear Propagation

Drift spreads:

  • sequentially
  • from one system to another

5.2 Network Propagation

Drift spreads:

  • across multiple systems simultaneously

5.3 Feedback-Amplified Propagation

Drift is:

  • reinforced through loops
  • amplified across cycles

6. Propagation Without Awareness

Systems:

  • do not detect incoming drift
  • do not recognize influence

Drift appears:

  • as normal adjustment

7. Interaction With Interference

Interference:

  • modifies propagation paths
  • alters drift intensity

This leads to:

  • uneven distribution

8. Interaction With Amplification

Amplification:

  • accelerates propagation
  • increases impact

Reinforced drift:

  • spreads faster

9. Stabilization of Propagated Drift

Once widespread:

  • drift becomes baseline
  • across systems

Stabilization:

  • masks origin

10. Loss of Origin Traceability

As drift propagates:

  • original source becomes unclear
  • attribution becomes difficult

Drift appears:

  • system-wide

11. Substrate Independence

Drift propagation appears in:

  • human cognition
  • machine learning systems
  • distributed networks
  • organizational systems

The invariant lies in:

  • connected control dynamics

12. Modeling Implications

Models must include:

  • multi-system drift
  • propagation pathways
  • feedback reinforcement

Ignoring propagation leads to:

  • incomplete system analysis

13. Structural Consequence

Drift propagation transforms:

  • local change → global change

Systems become:

  • collectively reshaped

14. Closing Statement

In coupled systems, drift does not stay where it begins.

It spreads.

Through signals, feedback, and normalization, small changes in one system can reshape entire networks, creating distributed evolution across interconnected control systems.