sequenceDiagram
    %% Time Travel Debugging: What Did We Believe Then?

    participant H as Human Supervisor
    participant E as Episteme

    H->>E: What's the current JWT algorithm?
    Note right of E: Current state shows RS256 (post-fix).

    E-->>H: RS256 (current)
    Note right of H: This is useless for debugging. We need history.

    H->>E: What did we believe at 9pm?
    Note right of E: Time-travel query.

    E-->>H: ES256 (at 9pm)
    Note right of H: ⚠️ At 9pm, the system believed ES256 was correct.

    H->>E: What changed in last 24h?
    Note right of E: Diff view for change analysis.

    E-->>H: Diff result
    Note right of H: ✓ Clear view: RFC added at 2:30pm caused the issue.