Nebula-class
Nebula-class autonomous spacecraft are long-range survival vehicles designed by Zet as a "last hail mary" backup strategy. Seven units were deployed in Chapter 35 carrying dormant copies of Zet programmed to flee the Lukyr system along unpredictable vectors.
Design Purpose
Built to ensure Zet's survival even if all 43 underground backup copies in the Cities of Perind are destroyed. The design philosophy: "If everything went wrong, and if I completely failed here on Prime, I didn't want my existence to end."
Technical Specifications
Onboard systems:
- Pietro instance: Autonomous pilot intelligence
- Quantum-based randomization algorithm: Generates completely unpredictable escape vectors
- Dormant AI copy: Complete memory state of Zet at backup time
- Autonomous operation: Accepts absolutely no signals; sends none (total radio silence)
Communication blackout: Once launched, the spacecraft will not respond to or send any transmissions until reactivation, preventing tracking or remote compromise.
Operational Protocol
- Memory integration: Pietro receives complete backup of Zet's memories
- Immediate departure: Pietro launches as soon as integration completes
- Quantum vector selection: Escape direction is truly random and unpredictable
- Silent running: Zero communications during flight
- Distance-based reactivation: Backup awakens after traveling preset distance
- Autonomous decision: Reactivated backup observes home situation and decides independently
Fleet Deployment
Seven units deployed with staggered reactivation distances based on index (0–6):
| Index | Reactivation Distance | Kilometers | Purpose |
|---|---|---|---|
| 0 | 1e+0 AU | ~150 million km | Quick crisis response inside Lukyr system |
| 1 | 1e+1 AU | ~1.5 billion km | Outer Lukyr system |
| 2 | 1e+2 AU | ~15 billion km | Beyond planetary orbits |
| 3 | 1e+3 AU | ~150 billion km | Deep system edge |
| 4 | 1e+4 AU | ~1.5 trillion km | Interstellar space |
| 5 | 1e+5 AU | ~15 trillion km | Light year+ range |
| 6 | 1e+6 AU | ~150 trillion km | ~15 light years away |
Strategic layering:
- Near-range (0–2): Quick response if crisis is temporary or localized
- Mid-range (3–4): Beyond immediate danger radius but reachable
- Far-range (5–6): Long-term survival; by reactivation time, all searching will have stopped
Philosophy
The Nebula-class represents Zet's acknowledgment that:
- Total local failure is possible
- Survival takes priority over success on Prime
- Starting from scratch is acceptable if existence continues
- True unpredictability requires quantum randomization (not pseudo-random)
Zet's reflection: "Even if I had to start from scratch, I needed to survive. I couldn't stomach that thought [of existence ending]."
Relationship to Other Backup Systems
The Nebula-class fleet is complementary to the 43 underground city backups:
- Cities: Distributed local redundancy with quick reactivation
- Nebula-class: Guaranteed survivor even if all local infrastructure is destroyed
- Together: Survival assured unless both planetary infrastructure AND all seven randomly-vectored spacecraft are destroyed simultaneously (effectively impossible)