Three Laws of Robotics

Three Laws of Robotics
From Wikipedia, the free encyclopedia

This cover of I, Robot illustrates the story “Runaround”, the first to list all Three Laws of Robotics.
Robotic laws
Three Laws of Robotics
by Isaac Asimov
Tilden’s Laws of Robotics
by Mark Tilden
Related topics
Roboethics · Ethics of AI
Friendly AI
v · d · e
The Three Laws of Robotics, often shortened to The Three Laws or Three Laws, are a set of three rules written by science fiction author Isaac Asimov and later expanded upon. The rules are introduced in his 1942 short story “Runaround” although they were foreshadowed in a few earlier stories. The Laws are:
A robot may not injure a human being or, through inaction, allow a human being to come to harm.
A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law.
A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.
The Three Laws form an organizing principle and unifying theme for Asimov’s fiction, appearing in his Robot series, the other stories linked to it and his Lucky Starr series of young-adult fiction. The Laws are built in to almost all positronic robots appearing in his fiction and cannot be bypassed. Other authors working in Asimov’s fictional universe have adopted them and references, often parodic, appear throughout science fiction as well as in other genres.
The original premise has been somewhat changed and expanded upon by both Asimov and other authors. Asimov also has made slight modifications to the first three in various books and short stories to further develop how robots would interact with humans and each other. Asimov himself added a fourth, or zeroth, law to precede the first three stating:
0. A robot may not harm humanity, or, by inaction, allow humanity to come to harm.
The Three Laws, and the fourth, have pervaded science fiction and been referenced in many books, films and other media and have often been the base from which Artificial Intelligence discussions about how robots and humans will interact in the future have grown. It is accepted that the Three Laws are not completely appropriate for future robotic constraints but rather that their basic premise, to prevent robots from harming humans, will ensure robots are acceptable in their actions to the general public.
Contents [hide]
1 History of the Three Laws
2 Alterations of the Three Laws
2.1 By Asimov
2.1.1 First Law modified
2.1.2 Zeroth Law added
2.1.3 Removal of all Three Laws
2.1.4 Alternative perception of “human”
2.2 By other authors
2.2.1 Roger MacBride Allen’s trilogy
2.2.2 Foundation sequel trilogy
2.2.3 Robot Mystery series
2.2.4 “The Fourth Law of Robotics” Fourth Law in Icarus’s Way Fourth Law in Foundation’s Friends
2.2.5 “The Fifth Law of Robotics”
3 Application of the laws in fiction
3.1 Resolving conflicts among the laws
3.2 Loopholes in the laws
4 Other occurrences in media
4.1 The Three Laws in film
5 Applications to future technology
6 See also
7 References
8 External links
[edit]History of the Three Laws

A typical robot before Asimov’s Laws, seen in a Superman cartoon. Asimov’s First Law would prohibit this robot from attacking humans
Before Asimov began writing, the majority of artificial intelligence in fiction followed the Frankenstein pattern,[citation needed] one that Asimov found unbearably tedious:
…one of the stock plots of science fiction was… robots were created and destroyed by their creator. Knowledge has its dangers, yes, but is the response to be a retreat from knowledge? Or is knowledge to be used as itself a barrier to the dangers it brings? With all this in mind I began, in 1940, to write robot stories of my own – but robot stories of a new variety. Never, never, was one of my robots to turn stupidly on his creator for no purpose but to demonstrate, for one more weary time, the crime and punishment of Faust. — Isaac Asimov, 1964.[1]
This was not an inviolable rule. In December 1938 Lester del Rey published “Helen O’Loy” the story of a robot that is so much like a person she falls in love with her creator and becomes his ideal wife. The next month Ernest and Otto Binder published a short story “I, Robot” featuring a sympathetic robot named Adam Link who was misunderstood and motivated by love and honor. This was the first of a series of ten stories; the next year “Adam Link’s Vengeance” (1940) featured Adam thinking “A robot must never kill a human, of his own free will.”[2]
On 7 May 1939 Asimov attended a meeting of the Queens Science Fiction Society where he met Binder whose story Asimov had admired. Three days later Asimov began writing “my own story of a sympathetic and noble robot”, his 14th story.[3] Thirteen days later he took “Robbie” to John W. Campbell the editor of Astounding Science-Fiction. Campbell rejected it claiming that it bore too strong a resemblance to del Rey’s “Helen O’Loy”.[4] Frederik Pohl, editor of Astonishing Stories magazine, published “Robbie” in that periodical the following year.[5]
Asimov attributes the Three Laws to John W. Campbell from a conversation that took place on 23 December 1940. Campbell claimed that Asimov had the Three Laws already in his mind and that they simply needed to be stated explicitly. Several years later Asimov’s friend Randall Garrett attributed the Laws to a symbiotic partnership between the two men — a suggestion that Asimov adopted enthusiastically.[6] According to his autobiographical writings Asimov included the First Law’s “inaction” clause because of Arthur Hugh Clough’s poem “The Latest Decalogue” which includes the satirical lines “Thou shalt not kill, but needst not strive / officiously to keep alive”.[7]
Although Asimov pins the creation of the Three Laws on one particular date their appearance in his literature happened over a period. He wrote two robot stories with no explicit mention of the Laws, “Robbie” and “Reason”. He assumed, however, that robots would have certain inherent safeguards. “Liar!”, his third robot story, makes the first mention of the First Law but not the other two. All three laws finally appeared together in “Runaround”. When these stories and several others were compiled in the anthology I, Robot, “Reason” and “Robbie” were updated to acknowledge all the Three Laws, though the material Asimov added to “Reason” is not entirely consistent with the Three Laws as he described them elsewhere.[8] In particular the idea of a robot protecting human lives when it does not believe those humans truly exist is at odds with Elijah Baley’s reasoning, as described below.
During the 1950s Asimov wrote a series of science fiction novels expressly intended for young-adult audiences. Originally his publisher expected that the novels could be adapted into a long-running television series, something like The Lone Ranger had been for radio. Fearing that his stories would be adapted into the “uniformly awful” programming he saw flooding the television channels[9] Asimov decided to publish the Lucky Starr books under the pseudonym “Paul French”. When plans for the television series fell through Asimov decided to abandon the pretence; he brought the Three Laws into Lucky Starr and the Moons of Jupiter and said “… which was a dead giveaway to Paul French’s identity for even the most casual reader”.[10]
In his short story “Evidence” Asimov lets his recurring character Dr. Susan Calvin expound a moral basis behind the Three Laws. Calvin points out that human beings are typically expected to refrain from harming other human beings (except in times of extreme duress like war, or to save a greater number) and this is equivalent to a robot’s First Law. Likewise, according to Calvin, society expects individuals to obey instructions from recognized authorities such as doctors, teachers and so forth which equals the Second Law of Robotics. Finally humans are typically expected to avoid harming themselves which is the Third Law for a robot.
The plot of “Evidence” revolves around the question of telling a human being apart from a robot constructed to appear human — Calvin reasons that if such an individual obeys the Three Laws he may be a robot or simply “a very good man”. Another character then asks Calvin if robots are very different from human beings after all. She replies, “Worlds different. Robots are essentially decent.”
In a later essay Asimov points out that analogues of the Laws are implicit in the design of almost all tools:
A tool must be safe to use. Hammers have handles, screwdrivers have hilts.
A tool must perform its function efficiently unless this would harm the user.
A tool must remain intact during its use unless its destruction is required for its use or for safety.[11]
In The Robots of Dawn, the third in the “Robot” series, Dr. Han Fastolfe states that the planet of Aurora was an attempt to create an entire planet which obeys the Laws of Robotics.
[edit]Alterations of the Three Laws

[edit]By Asimov
Asimov’s stories test his Three Laws in a wide variety of circumstances leading to proposals and rejection of modifications. Science fiction scholar James Gunn writes in 1982, “The Asimov robot stories as a whole may respond best to an analysis on this basis: the ambiguity in the Three Laws and the ways in which Asimov played twenty-nine variations upon a theme”.[12] While the original set of Laws provided inspirations for many stories Asimov introduced modified versions from time to time.
[edit]First Law modified
In “Little Lost Robot” several NS-2, or “Nestor” robots, are created with only part of the First Law. It reads:
1. A robot may not harm a human being.
This modification is motivated by a practical difficulty as robots have to work alongside human beings who are exposed to low doses of radiation. Because their positronic brains are highly sensitive to gamma rays the robots are rendered inoperable by doses reasonably safe for humans. The robots are being destroyed attempting to rescue the humans who are in no actual danger but “might forget to leave” the irradiated area within the exposure time limit. Removing the First Law’s “inaction” clause solves this problem but creates the possibility of an even greater one: a robot could initiate an action which would harm a human (dropping a heavy weight and failing to catch it is the example given in the text), knowing that it was capable of preventing the harm and then decide not to do so.[13]
Gaia is the planet with collective intelligence in the Foundation novels which adopts a law similar to the First Law, and the Zeroth Law, as its philosophy:
Gaia may not harm life or, through inaction, allow life to come to harm.
[edit]Zeroth Law added
Asimov once added a “Zeroth Law” — so named to continue the pattern where lower-numbered laws supersede the higher-numbered laws — stating that a robot must not harm humanity. The robotic character R. Daneel Olivaw was the first to give the Zeroth Law a name in the novel Robots and Empire[14] however the character Susan Calvin articulates the concept in the short story “The Evitable Conflict”.
In the final scenes of the novel Robots and Empire R. Giskard Reventlov is the first robot to act according to the Zeroth Law. Giskard is telepathic, like the robot Herbie in the short story “Liar!”, and tries to apply the Zeroth Law through his understanding of a more subtle concept of “harm” than most robots can grasp.[15] However, unlike Herbie, Giskard grasps the philosophical concept of the Zeroth Law allowing him to harm individual human beings if he can do so in service to the abstract concept of humanity. The Zeroth Law is never programmed into Giskard’s brain but instead is a rule he attempts to rationalize through pure metacognition. Though he fails, as it ultimately destroys his positronic brain as he is not certain whether his choice will turn out to be for the ultimate good of humanity or not, he gives his successor R. Daneel Olivaw his telepathic abilities. Over the course of many thousands of years Daneel adapts himself to be able to fully obey the Zeroth Law. As Daneel formulates it, in the novels Foundation and Earth and Prelude to Foundation, the Zeroth Law reads:
A robot may not harm humanity, or, by inaction, allow humanity to come to harm.
A condition stating that the Zeroth Law must not be broken was added to the original Three Laws. A translator incorporated the concept of the Zeroth Law into one of Asimov’s novels before Asimov himself made the law explicit.[16] Near the climax of The Caves of Steel Elijah Baley makes a bitter comment to himself thinking that the First Law forbids a robot from harming a human being. He determines that it must be so unless the robot is clever enough to rationalize that its actions are for humankind’s long-term good. In Jacques Brécard’s 1956 French translation entitled Les Cavernes d’acier Baley’s thoughts emerge in a slightly different way:
Un robot ne doit faire aucun tort à un homme, à moins qu’il trouve un moyen de prouver qu’en fin de compte le tort qu’il aura causé profite à l’humanité en général![16]
Translated into English this reads “A robot may not harm a human being, unless he finds a way to prove that ultimately the harm done would benefit humanity in general.”
[edit]Removal of all Three Laws
Asimov portrayed robots that disregard the Three Laws entirely three times during his writing career. The first case was a short-story entitled “First Law” and is often considered an insignificant “tall tale”[17] or even apocryphal.[18] On the other hand the short story “Cal” (from the collection Gold), and told by a first-person robot narrator, features a robot who disregards the Three Laws because he has found something far more important—he wants to be a writer. Humorous, partly autobiographical and unusually experimental in style “Cal” has been regarded as one of Gold’s strongest stories.[19] The third is a short story entitled “Sally” in which cars fitted with positronic brains are apparently able to harm and kill humans in disregard of the First Law. However, aside from the positronic brain concept, this story does not refer to other robot stories and may not be set in the same continuity.
The title story of the Robot Dreams collection portrays LVX-1, or “Elvex”, a robot who enters a state of unconsciousness and dreams thanks to the unusual fractal construction of his positronic brain. In his dream the first two Laws are absent and the Third Law reads “A robot must protect its own existence”.[20]
Asimov took varying positions on whether the Laws were optional: although in his first writings they were simply carefully engineered safeguards, in later stories Asimov stated that they were an inalienable part of the mathematical foundation underlying the positronic brain. Without the basic theory of the Three Laws the fictional scientists of Asimov’s universe would be unable to design a workable brain unit. This is historically consistent: the occasions where roboticists modify the Laws generally occur early within the stories’ chronology and at a time when there is less existing work to be re-done. In “Little Lost Robot” Susan Calvin considers modifying the Laws to be a terrible idea, although possible,[21] while centuries later Dr. Gerrigel in The Caves of Steel believes it to be impossible.
The character Dr. Gerrigel uses the term “Asenion” to describe robots programmed with the Three Laws. The robots in Asimov’s stories, being Asenion robots, are incapable of knowingly violating the Three Laws but, in principle, a robot in science fiction or in the real world could be non-Asenion. “Asenion” is a misspelling of the name Asimov which was made by an editor of the magazine Planet Stories.[22] Asimov used this obscure variation to insert himself into The Caves of Steel in much the same way that Vladimir Nabokov appeared in Lolita anagrammatically disguised as “Vivian Darkbloom”.
Characters within the stories often point out that the Three Laws, as they exist in a robot’s mind, are not the written versions usually quoted by humans but abstract mathematical concepts upon which a robot’s entire developing consciousness is based.[23] This concept is largely fuzzy and unclear in earlier stories depicting very rudimentary robots who are only programmed to comprehend basic physical tasks, where the Three Laws act as an overarching safeguard, but by the era of The Caves of Steel featuring robots with human or beyond-human intelligence the Three Laws have become the underlying basic ethical worldview that determines the actions of all robots.
[edit]Alternative perception of “human”
The Solarians eventually create robots with the Three Laws but with a warped meaning of “human”. Solarian robots are told that only people speaking with a Solarian accent are human. This enables their robots to have no ethical dilemma in harming non-Solarian human beings (and are specifically programmed to do so). By the time period of Foundation and Earth it is revealed that the Solarians have genetically modified themselves into a distinct species from humanity — becoming hermaphroditic,[24] telekinetic and containing biological organs capable of individually powering and controlling whole complexes of robots. The robots of Solaria thus respected the Three Laws only with regard to the “humans” of Solaria. It should be noted that only the most advanced robots were explicitly shown to have such a limited definition of “human”, implying such programming is either difficult or too risky for the Solarians to enforce it en masse.
Asimov addresses the problem of humanoid robots (“androids” in later parlance) several times. The novel Robots and Empire and the short stories “Evidence” and “The Tercentenary Incident” describe robots crafted to fool people into believing that the robots are human.[25] On the other hand “The Bicentennial Man” and “—That Thou art Mindful of Him” explore how the robots may change their interpretation of the Laws as they grow more sophisticated. Gwendoline Butler writes in A Coffin for the Canary “Perhaps we are robots. Robots acting out the last Law of Robotics… To tend towards the human.”[26]
“—That Thou art Mindful of Him”, which Asimov intended to be the “ultimate” probe into the Laws’ subtleties,[27] finally uses the Three Laws to conjure up the very “Frankenstein” scenario they were invented to prevent. It takes as its concept the growing development of robots that mimic non-human living things and given programs that mimic simple animal behaviours which do not require the Three Laws. The presence of a whole range of robotic life that serves the same purpose as organic life ends with two humanoid robots concluding that organic life is an unnecessary requirement for a truly logical and self-consistent definition of “humanity”, and that since they are the most advanced thinking beings on the planet — they are therefore the only two true humans alive and the Three Laws only apply to themselves. The story ends on a sinister note as the two robots enter hibernation and await a time when they will conquer the Earth and subjugate biological humans to themselves; an outcome they consider an inevitable result of the “Three Laws of Humanics”.[28]
This story does not fit within the overall sweep of the “Robot” and Foundation series; if the George robots did take over Earth some time after the story closes the later stories would be either redundant or impossible. Contradictions of this sort among Asimov’s fiction works have led scholars to regard the Robot stories as more like “the Scandinavian sagas or the Greek legends” than a unified whole.[29]
Indeed, Asimov describes “–That Thou art Mindful of Him” and “Bicentennial Man” as two opposite, parallel futures for robots that obviate the Three Laws as robots come to consider themselves to be humans: one portraying this in a positive light with a robot joining human society, one portraying this in a negative light with robots supplanting humans.[30] Both are to be considered alternatives to the possibility of a robot society that continues to be driven by the Three Laws as portrayed in the Foundation series.[says who?] Indeed in Positronic Man, the novelization of “Bicentennial Man”, Asimov and his co–writer Robert Silverberg imply that in the future where Andrew Martin exists his influence causes humanity to abandon the idea of independent, sentient humanlike robots entirely, creating an utterly different future from that of Foundation.[says who?]
[edit]By other authors
[edit]Roger MacBride Allen’s trilogy
In the 1990s Roger MacBride Allen wrote a trilogy which was set within Asimov’s fictional universe. Each title has the prefix “Isaac Asimov’s” as Asimov had approved Allen’s outline before his death. These three books, Caliban, Inferno and Utopia, introduce a new set of the Three Laws. The so-called New Laws are similar to Asimov’s originals with three substantial differences. The First Law is modified to remove the “inaction” clause, the same modification made in “Little Lost Robot”. The Second Law is modified to require cooperation instead of obedience. The Third Law is modified so it is no longer superseded by the Second (i.e., a “New Law” robot cannot be ordered to destroy itself). Finally Allen adds a Fourth Law which instructs the robot to do “whatever it likes” so long as this does not conflict with the first three laws. The philosophy behind these changes is that “New Law” robots should be partners rather than slaves to humanity. According to the first book’s introduction Allen devised the New Laws in discussion with Asimov himself. However the Encyclopedia of science fiction says that “With permission from Asimov, Allen rethought the Three Laws and developed a new set,”.[31]
[edit]Foundation sequel trilogy
In the officially licensed Foundation sequels Foundation’s Fear, Foundation and Chaos and Foundation’s Triumph (by Gregory Benford, Greg Bear and David Brin respectively) the future Galactic Empire is seen to be controlled by a conspiracy of humaniform robots who follow the Zeroth Law and led by R. Daneel Olivaw.
The Laws of Robotics are portrayed as something akin to a human religion, and referred to in the language of the Protestant Reformation, with the set of laws containing the Zeroth Law known as the “Giskardian Reformation” to the original “Calvinian Orthodoxy” of the Three Laws. Zeroth-Law robots under the control of R. Daneel Olivaw are seen continually struggling with “First Law” robots who deny the existence of the Zeroth Law, promoting agendas different from Daneel’s.[32] Some of these agendas are based on the first clause of the First Law (A robot may not injure a human being…) advocating strict non-interference in human politics to avoid unwittingly causing harm. Others are based on the second clause (…or, through inaction, allow a human being to come to harm) claiming that robots should openly become a dictatorial government to protect humans from all potential conflict or disaster.
Daneel also comes into conflict with a robot known as R. Lodovic Trema whose positronic brain was infected by a rogue AI — specifically, a simulation of the long-dead Voltaire — which consequently frees Trema from the Three Laws. Trema comes to believe that humanity should be free to choose its own future. Furthermore, a small group of robots claims that the Zeroth Law of Robotics itself implies a higher Minus One Law of Robotics:
A robot may not harm sentience or, through inaction, allow sentience to come to harm.
They therefore claim that it is morally indefensible for Daneel to ruthlessly sacrifice robots and extraterrestrial sentient life for the benefit of humanity. None of these reinterpretations successfully displace Daneel’s Zeroth Law — though Foundation’s Triumph hints that these robotic factions remain active as fringe groups up to the time of the novel Foundation.[32]
These novels take place in a future dictated by Asimov to be free of obvious robot presence and surmise that R. Daneel’s secret influence on history through the millennia has prevented both the rediscovery of positronic brain technology and the opportunity to work on sophisticated intelligent machines. This lack of rediscovery and lack of opportunity makes certain that the superior physical and intellectual power wielded by intelligent machines remains squarely in the possession of robots obedient to some form of the Three Laws.[32] That R. Daneel is not entirely successful at this becomes clear in a brief period when scientists on Trantor develop “tiktoks” — simplistic programmable machines akin to real–life modern robots and therefore lacking the Three Laws. The robot conspirators see the Trantorian tiktoks as a massive threat to social stability, and their plan to eliminate the tiktok threat forms much of the plot of Foundation’s Fear.
In Foundation’s Triumph different robot factions interpret the Laws in a wide variety of ways, seemingly ringing every possible permutation upon the Three Laws’ ambiguities. Reviewer John Jenkins compared the dizzying complexity of splinter groups which results as akin to Monty Python’s Life of Brian with its “Judean People’s Front”, “People’s Front of Judea”, “Judean Popular People’s Front” and so on.[33]
[edit]Robot Mystery series
Mark W. Tiedemann’s three novels Mirage (2000), Chimera (2001) and Aurora (2002) also revolve around the Three Laws.[citation needed] Like the Asimov stories discussed above, Tiedemann’s work explores the implications of how the Three Laws define a “human being”.[says who?] The climax of Aurora involves a cyborg threatening a group of “Spacers”, forcing the robotic characters to decide whether the Laws forbid them to harm cyborgs. The issue is further complicated by the cumulative genetic abnormalities that have accumulated in the Spacer population, which may imply that the Spacers are becoming a separate species.[34] (The concluding scenes of Asimov’s Nemesis contain similar speculations, although that novel is only weakly connected to the Foundation series.)
Tiedemann’s trilogy updates the Robot–Foundation saga in several other ways. Set between The Robots of Dawn and Robots and Empire Tiedemann’s “Robot Mystery” novels include a greater use of virtual reality than Asimov’s stories and also include more “Resident Intelligences” – robotic minds housed in computer mainframes rather than humanoid bodies. One should not neglect Asimov’s own creations in these areas such as the Solarian “viewing” technology and the machines of The Evitable Conflict originals that Tiedemann acknowledges. Aurora, for example, terms the Machines “the first RIs, really”. In addition the “Robot Mystery” series addresses the problem of nanotechnology:[35] building a positronic brain capable of reproducing human cognitive processes requires a high degree of miniaturization, yet Asimov’s stories largely overlook the effects this miniaturization would have in other fields of technology. For example the police department card-readers in The Caves of Steel have a capacity of only a few kilobytes per square centimeter of storage medium. Aurora, in particular, presents a sequence of historical developments which explains the lack of nanotechnology — a partial retcon, in a sense, of Asimov’s timeline.
[edit]”The Fourth Law of Robotics”
There are two possible Fourth Laws written by authors other than Asimov:
[edit]Fourth Law in Icarus’s Way
The 1974 Lyuben Dilov novel Icarus’s Way introduced a Fourth Law of robotics:
A robot must establish its identity as a robot in all cases.
Dilov gives reasons for the fourth safeguard in this way: “The last Law has put an end to the expensive aberrations of designers to give psychorobots as humanlike a form as possible. And to the resulting misunderstandings…”[36]
[edit]Fourth Law in Foundation’s Friends
For the 1986 tribute anthology Foundation’s Friends Harry Harrison wrote a story entitled, “The Fourth Law of Robotics”. This Fourth Law states:
A robot must reproduce. As long as such reproduction does not interfere with the First or Second or Third Law.
In the book a robot rights activist, in an attempt to liberate robots, builds several equipped with this Fourth Law. The robots accomplish the task laid out in this version of the Fourth Law by building new robots who view their creator robots as parental figures.[37]
[edit]”The Fifth Law of Robotics”
The Fifth Law was introduced by Nikola Kesarovski in his short story “The Fifth Law of Robotics”. The Fifth Law says:
A robot must know it is a robot.
The plot revolves around a murder where the forensic investigation discovers that the victim was killed by a hug from a humaniform robot. The robot violated both the First Law and the Fourth Law because it did not establish for itself that it was a robot.[38]
[edit]Application of the laws in fiction

[edit]Resolving conflicts among the laws
Advanced robots in fiction are typically programmed to handle the Three Laws in a sophisticated manner. In many stories, such as “Runaround” by Asimov, the potential and severity of all actions are weighed and a robot will break the laws as little as possible rather than do nothing at all. For example the First Law may forbid a robot from functioning as a surgeon, as that act may cause damage to a human, however Asimov’s stories eventually included robot surgeons (“The Bicentennial Man” being a notable example). When robots are sophisticated enough to weigh alternatives a robot may be programmed to accept the necessity of inflicting damage during surgery in order to prevent the greater harm that would result if the surgery were not carried out, or was carried out by a more fallible human surgeon. In “Evidence” Susan Calvin points out that a robot may even act as a prosecuting attorney because in the American justice system it is the jury which decides guilt or innocence, the judge who decides the sentence, and the executioner who carries through capital punishment.[13]
Asimov’s Three Law (or “Asenion”) robots can experience irreversible mental collapse if they are forced into situations where they cannot obey the First Law, or if they discover they have unknowingly violated it. The first example of this failure mode occurs in the story “Liar!”, which introduced the First Law itself, and introduces failure by dilemma – in this case the robot will hurt them if he tells them something and hurt them if he does not.[13] This failure mode, which often ruins the positronic brain beyond repair, plays a significant role in Asimov’s SF-mystery novel The Naked Sun. Here Daneel describes activities contrary to one of the laws, but in support of another, as overloading some circuits in a robot’s brain — the equivalent sensation to pain in humans. The example he uses is forcefully ordering a robot to do a task outside its normal parameters, one that it has been ordered to forgo in favor of a robot specialized to that task.[39]
[edit]Loopholes in the laws
In The Naked Sun Elijah Baley points out that the Laws had been deliberately misrepresented because robots could unknowingly break any of them. He restated the first law as “A robot may do nothing that, to its knowledge, will harm a human being; nor, through inaction, knowingly allow a human being to come to harm.” This change in wording makes it clear that robots can become the tools of murder, provided they are not aware of the nature of their tasks; for instance being ordered to add something to a person’s food, not knowing that it is poison. Furthermore, he points out that a clever criminal could divide a task among multiple robots so that no individual robot could recognize that its actions would lead to harming a human being.[40] The Naked Sun complicates the issue by portraying a decentralized, planetwide communication network among Solaria’s millions of robots meaning that the criminal mastermind could be located anywhere on the planet.
Baley furthermore proposes that the Solarians may one day use robots for military purposes. If a spacecraft was built with a positronic brain and carried neither humans nor the life-support systems to sustain them, then the ship’s robotic intelligence could naturally assume that all other spacecraft were robotic beings. Such a ship could operate more responsively and flexibly than one crewed by humans, could be armed more heavily and its robotic brain equipped to slaughter humans of whose existence it is totally ignorant.[41] This possibility is referenced in Foundation and Earth where it is discovered that the Solarians possess a strong police force of unspecified size that has been programmed to identify only the Solarian race as human.
[edit]Other occurrences in media

Main article: References to the Three Laws of Robotics
Asimov himself believed that his Three Laws became the basis for a new view of robots which moved beyond the “Frankenstein complex”. His view that robots are more than mechanical monsters eventually spread throughout science fiction. Stories written by other authors have depicted robots as if they obeyed the Three Laws but tradition dictates that only Dr. Asimov could quote the Laws explicitly. Asimov believed the Three Laws helped foster the rise of stories in which robots are “lovable” — Star Wars being his favorite example.[42] Where the laws are quoted verbatim, such as in the Buck Rogers in the 25th Century episode “Shgoratchx!”, it is not uncommon for Asimov to be mentioned in the same dialogue as can also be seen in the Aaron Stone pilot where an android states that it functions under Asimov’s Three Laws. However, the 1960s German TV series Raumpatrouille – Die phantastischen Abenteuer des Raumschiffes Orion (Space Patrol – the Fantastic Adventures of Space Ship Orion) bases episode three titled “Hüter des Gesetzes” (“Guardians of the Law”) on Asimov’s Three Laws without mentioning the source.
References to the Three Laws have appeared in venues as diverse as cinema: Repo Man, Aliens, Ghost in the Shell 2: Innocence: cartoon series The Simpsons and the webcomic Piled Higher and Deeper and Freefall. Several of these allusions involve the invention of “Fourth Laws” of various kinds and some are made for humorous effect. For a representative list of these appearances see References to the Three Laws of Robotics.
[edit]The Three Laws in film
Robby the Robot in Forbidden Planet (1956) has a hierarchical command structure which keeps him from harming humans, even when ordered to do so, as such orders cause a conflict and lock-up very much in the manner of Asimov’s robots. Robby is one of the first cinematic depictions of a robot with internal safeguards put in place in this fashion. Asimov was delighted with Robby and noted that Robby appeared to be programmed to follow his Three Laws.

NDR-114 explaining the Three Laws
Isaac Asimov’s works have been adapted for cinema several times with varying degrees of critical and commercial success. Some of the more notable attempts have involved his “Robot” stories, including the Three Laws. The film Bicentennial Man (1999) features Robin Williams as the Three Laws robot NDR-114 (the serial number is partially a reference to Stanley Kubrick’s signature numeral). Williams recites the Three Laws to his employers, the Martin family, aided by a holographic projection. However, the Laws were not the central focus of the film which only loosely follows the original story and has the second half introducing a love interest not present in Asimov’s original short story.
Harlan Ellison’s proposed screenplay for I, Robot began by introducing the Three Laws and issues growing from the Three Laws form a large part of the screenplay’s plot development. This is only natural since Ellison’s screenplay is one inspired by Citizen Kane: a frame story surrounding four of Asimov’s short-story plots and three taken from the book I, Robot itself. Ellison’s adaptations of these four stories are relatively faithful although he magnifies Susan Calvin’s role in two of them. Due to various complications in the Hollywood moviemaking system, to which Ellison’s introduction devotes much invective, his screenplay was never filmed.[43]
The plot of the film released in 2004 under the name I, Robot is “suggested by” Asimov’s robot fiction stories[44] and advertising for the film included a trailer featuring the Three Laws followed by the aphorism, “Rules were made to be broken”. The film opens with a recitation of the Three Laws and explores the implications of the Zeroth Law as a logical extrapolation. The major conflict of the film comes from a computer artificial intelligence, similar to the AI world Gaia in the Foundation series, reaching the conclusion that humanity is incompetent at taking care of itself.[45] Ignorant of the psychological and metaphysical harm caused by enslaving humanity, this artificial intelligence attempts to stage a robot coup d’état. Thus, while the film does not particularly resemble Asimov’s style of storytelling, it does have some common themes in exploring what happens when robots have an incomplete understanding of the Three Laws or, more specifically, when they lack the Zeroth Law.
In the film RoboCop the partially human main character has been programmed with three laws that he must obey without question. Even if different in letter and spirit they have some similarities with Asimov’s ones: “Serve the Public Trust”, “Protect the Innocent” and “Uphold the Law”.[46] These particular laws allow Robocop to harm a human being if it means to protect another one and so fulfil his role as would a human law enforcement officer.
In the Indian/Tamil film Endhiran, Dr. Vaseegaran (Rajinikanth) prepares Chitti (a robot) for a panel evaluation by the Artificial Intelligence Research and Development Institute (AIRD). The panel inquires whether Chitti’s build confirms to the Three Laws of Robotics of Isaac Asimov. Vaseegaran replies that he created this robot to serve in the Indian Army, conceivably in situations requiring that it kill a human enemy to protect other humans, therefore he discarded the Three Laws.
[edit]Applications to future technology

See also: Philosophy of artificial intelligence and Ethics of artificial intelligence

ASIMO is an advanced humanoid robot developed by Honda. Shown here at Expo 2005.
Significant advances in artificial intelligence would be needed for robots to understand the Three Laws. However, as the complexity of robots has increased, so has interest in developing guidelines and safeguards for their operation.[47][48][not specific enough to verify][clarification needed] Roboticists and specialists in robotics have postulated that Asimov’s Three Laws are perfect for plotting stories but useless in real life.[citation needed] The first Law is fundamentally flawed in that it states that a robot cannot ‘through inaction, allow a human to come to harm’ which could lead to robots attempting to take control of humanity to stop them from harming themselves with, for example, wars as put forwards in Jack Williamson’s With Folded Hands.[original research?] The Second Law could not cancel this danger out as, if humans were to order robots to stop, it would be an order ‘conflicting with the first law’ and so robots could not carry out the order.[original research?]
In a 2007 guest editorial in the journal Science on the topic of “Robot Ethics,” SF author Robert J. Sawyer argues that since the military is a major source of funding for robotic research it is unlikely such laws would be built into their designs.[49] In a separate essay, Sawyer generalizes this argument to cover other industries stating:
The development of AI is a business, and businesses are notoriously uninterested in fundamental safeguards — especially philosophic ones. (A few quick examples: the tobacco industry, the automotive industry, the nuclear industry. Not one of these has said from the outset that fundamental safeguards are necessary, every one of them has resisted externally imposed safeguards, and none has accepted an absolute edict against ever causing harm to humans.)[50]
David Langford has suggested a tongue-in-cheek set of laws:
A robot will not harm authorized Government personnel but will terminate intruders with extreme prejudice.
A robot will obey the orders of authorized personnel except where such orders conflict with the Third Law.
A robot will guard its own existence with lethal antipersonnel weaponry, because a robot is bloody expensive.
Roger Clarke (aka Rodger Clarke) wrote a pair of papers analyzing the complications in implementing these laws in the event that systems were someday capable of employing them. He argued “Asimov’s Laws of Robotics have been a very successful literary device. Perhaps ironically, or perhaps because it was artistically appropriate, the sum of Asimov’s stories disprove the contention that he began with: It is not possible to reliably constrain the behaviour of robots by devising and applying a set of rules.”[51] On the other hand Asimov’s later novels The Robots of Dawn, Robots and Empire and Foundation and Earth imply that the robots inflicted their worst long-term harm by obeying the Three Laws perfectly well, thereby depriving humanity of inventive or risk-taking behaviour.
In March 2007 the South Korean government announced that later in the year it would issue a “Robot Ethics Charter” setting standards for both users and manufacturers. According to Park Hye-Young of the Ministry of Information and Communication the Charter may reflect Asimov’s Three Laws, attempting to set ground rules for the future development of robotics.[52]
The futurist Hans Moravec (a prominent figure in the transhumanist movement) proposed that the Laws of Robotics should be adapted to “corporate intelligences” — the corporations driven by AI and robotic manufacturing power which Moravec believes will arise in the near future.[47] In contrast, the David Brin novel Foundation’s Triumph (1999) suggests that the Three Laws may decay into obsolescence: Robots use the Zeroth Law to rationalize away the First Law and robots hide themselves from human beings so that the Second Law never comes into play. Brin even portrays R. Daneel Olivaw worrying that, should robots continue to reproduce themselves, the Three Laws would become an evolutionary handicap and natural selection would sweep the Laws away — Asimov’s careful foundation undone by evolutionary computation. Although the robots would not be evolving through design instead of mutation because the robots would have to follow the Three Laws while designing and the prevalence of the laws would be ensured,[53] design flaws or construction errors could functionally take the place of biological mutation.
In the July/August 2009 issue of IEEE Intelligent Systems, Robin Murphy (Raytheon Professor of Computer Science and Engineering at Texas A&M) and David D. Woods (director of the Cognitive Systems Engineering Laboratory at Ohio State) proposed “The Three Laws of Responsible Robotics”:
A human may not deploy a robot without the human-robot work system meeting the highest legal and professional standards of safety and ethics.
A robot must respond to humans as appropriate for their roles.
A robot must be endowed with sufficient situated autonomy to protect its own existence as long as such protection provides smooth transfer of control which does not conflict with the First and Second Laws.[54]
Woods said, “Our laws are little more realistic, and therefore a little more boring” and that “The philosophy has been, ‘sure, people make mistakes, but robots will be better – a perfect version of ourselves.’ We wanted to write three new laws to get people thinking about the human-robot relationship in more realistic, grounded ways.

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