Quantum Infrastructure — Memory-First Boundary Design

Irreversibility Progression

1. 1
   Concept

   Define the non-negotiables. Specify what must never happen and the boundary conditions that refuse it.

   Phase gates (project-specific)

   • Define refusal conditions.
   • Specify boundary-driven stability.
   • Set lifetime targets.
2. 2
   Prototype

   Prove bounded failure. Demonstrate the refusal holds under representative stress and degradation.

   Phase gates (project-specific)

   • Demonstrate memory lifetime.
   • Bound correction overhead.
   • Validate scalability.
3. 3
   Deployment

   Lock custody across time. Make irreversibility institutional: accountability and exit routes are fixed.

   Phase gates (project-specific)

   • Operational protocol freeze.
   • Custody & authentication layer.
   • Long-term maintainability proof.

The timeline becomes real only when each gate is satisfied. Irreversibility is not a label; it is a completed constraint.