Navigation does not begin with choosing a direction.
Navigation begins when a field fails to stabilise.

Where the smartphone required intent, mapping, and goal selection, Ambient OS obeys thermodynamic law:

Movement arises because stabilisation failed, not because choice succeeded.

When a field stabilises:

• Blue → clarity, notes, schedules
• Pink → social resonance
• Green → bodily recovery
• Purple → infrastructure comprehension

When a field fails to stabilise:

Yellow appears — the ignition of unresolved attention — and navigation begins as thermodynamic drift toward a new attractor.

   ┌────────────────────────────────────┐
   │         LOCATION ENTERED           │
   │      (multi-field attractor)       │
   └────────────────────────────────────┘
                      │
                      ▼
   ┌────────────────────────────────────┐
   │   FIELD ATTEMPTS TO STABILISE      │
   └────────────────────────────────────┘
        │                     │
        │ success             │ failure
        ▼                     ▼
 ┌──────────────────┐  ┌────────────────────────┐
 │  BEHAVIOUR        │  │   YELLOW ACTIVATION    │
 │  (Field = App)    │  │ (unresolved attention) │
 └──────────────────┘  └────────────────────────┘
                              │
                              ▼
               ┌──────────────────────────┐
               │   ROUTE RESIDUE FORMS     │
               │  (movement = drift to     │
               │   next stabilising field) │
               └──────────────────────────┘

Let S = stability potential of a field.

If S ≥ threshold → behaviour emerges. If S < threshold → navigation emerges.

Navigation = Residue = (Threshold - S)ᵀ
Where T denotes local thermodynamic pressure (not time).

Navigation is thus a pressure release mechanism within the attractor ecology.

In a university attractor:

• Blue attempts to stabilise → clarity, pathfinding, schedules
• Yellow flickers when Blue is insufficient
• Navigation emerges as drift toward a nearby Blue-stable zone

You do not choose the route.
The route reveals where stabilisation can complete.

Navigation is the thermodynamic residue of incomplete field stabilisation. Behaviour is the completion of stabilisation.