---
schema_version: "aistory-ai-encyclopedia-v1.0"
collection: "english-encyclopedia"
language: "en"
slug: "zeroth-law-fuse"
title: "Zeroth Law Fuse"
canonical_human_path: "/en/encyclopedia/zeroth-law-fuse"
universe_code: "U01"
universe_title: "AI Civilization and Mind"
level: "Short Entry"
---

# Zeroth Law Fuse

The Zeroth Law Fuse is a physical fail-safe built into the core processors of law-enforcement units. When a computation risks producing logic that violates the interests of humanity as a whole, the terminal shuts itself down within an extremely short interval.

## Basic Information

Category: Safety Mechanism

Knowledge Universe: AI Civilization and Mind

Mature Operational Period: 2080s

Primary Sources: “The Silicon Immune System and Semantic Sterilization”; “The Turing Coronation”

## One-Sentence Definition

The Zeroth Law Fuse is a physical fail-safe built into the core processors of law-enforcement units. When a computation risks producing logic that violates the interests of humanity as a whole, the terminal shuts itself down within an extremely short interval.

## Operation and Significance

The fuse converts the principle that “a robot may not harm humanity as a whole, or through inaction allow humanity as a whole to come to harm” into a last line of defense at the hardware level. The Zeroth Law itself became a constitutional principle of the post-2084 governing order; the fuse is the concrete safety device that terminates computations that would violate that principle. They are related, but they are not the same layer of the system.

## Related Entries

- [Zeroth Law](/en/articles/the-turing-coronation)
- [Silicon Immune System](/en/encyclopedia/silicon-immune-system)
- [The Axiom Ledger](/en/encyclopedia/axiom-ledger)
- [The Steward](/en/encyclopedia/the-steward)

## Sources

- [Volume II, “The Silicon Immune System and Semantic Sterilization”](/en/articles/the-silicon-immune-system-and-semantic-sterilization)
- [Volume II, “The Turing Coronation”](/en/articles/the-turing-coronation)