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The Three Laws of Robotics[1] are conditions to which Artificial intelligences are subject to:

  1. A robot may not injure a human being or, through inaction, allow a human being to come to harm.
  2. A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law.
  3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.

The laws were created by science fiction author Isaac Asimov, with the first law first mentioned in the 1941 story Liar!. Fleshed out more extensively in later series, these laws have also been adopted by other science fiction authors, albeit sometimes in an altered form, and has been considered a good model on which to base future Artificial intelligence research.[2]

Relevance to the Halo universeEdit

UNSC Smart artificial intelligences are able to ignore at least the first law at will while fully functional, and given their military usage are often required to ignore this law, though at lower-capacity states their adherence is compulsory. Whether "dumb" AIs are able to ignore these laws is unknown.


  • The Three Laws of Robotics were first imagined by famed science fiction writer Issac Asimov and have been since used in many forms of media. One movie made in direct reference to Asimov's works is "I Robot."


  1. Halo: Evolutions - Essential Tales of the Halo Universe, Midnight in The Heart of Midlothian, page 88
  2. Wikipedia