
Isaac Asimov's Three Laws of Robotics are a set of fictional rules that form an organizing principle and unifying theme for Asimov's robot-based fiction. The laws first appeared in his short story Runaround (1942) and subsequently became hugely influential in the sci-fi genre and discussions involving technology, including robotics and AI. The three 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 the orders given to it by human beings unless this conflicts with the first law; and a robot must protect its own existence, unless this conflicts with the first or second law. Asimov later added a fourth or zeroth law that superseded the others. The laws have been altered and elaborated on by Asimov and other authors.
| Characteristics | Values |
|---|---|
| First Law | A robot may not injure a human being or, through inaction, allow a human being to come to harm. |
| Second Law | A robot must obey the orders given to it by human beings except where such orders would conflict with the First Law. |
| Third Law | A robot must protect its own existence as long as such protection does not conflict with the First or Second Law. |
| First Law | Every object at rest remains at rest, and an object in motion remains in motion with the same speed and in a straight line unless compelled to change by an external force. |
| Second Law | Force is equal to the change in momentum (mass times velocity) per change in time. |
| Third Law | For every action (force) in nature, there is an equal and opposite reaction. |
| First Law | When a distinguished but elderly scientist states that something is possible, he is almost certainly right. |
| Second Law | Any sufficiently advanced technology is indistinguishable from magic. |
| Third Law | Any sufficiently advanced technology is indistinguishable from magic. |
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What You'll Learn

Robots cannot harm humans
The first of Isaac Asimov's Three Laws of Robotics states that "a robot may not injure a human being or, through inaction, allow a human being to come to harm". This principle, also known as the First Law, serves as a fundamental guideline for the behaviour of robots in Asimov's fictional works and has had a significant influence on science fiction and discussions surrounding robotics and artificial intelligence.
The First Law reflects Asimov's belief that robots should have inherent safeguards to prevent them from causing harm to humans. This belief was inspired by Asimov's admiration for the short story "I, Robot" by Earl and Otto Binder, which featured a sympathetic robot named Adam Link. Asimov's own robot-centric stories, such as "Robbie" and "Runaround", further explored the concept of robots behaving in ethical and sympathetic ways.
The First Law establishes a crucial ethical framework for the interaction between robots and humans. It prioritises the safety and well-being of humans above all else, even the self-preservation of robots. This law sets the foundation for the subsequent laws, which further elaborate on the complex dynamics between robots and humans.
The Three Laws of Robotics, including the First Law, have been subject to alterations and elaborations by Asimov and other authors over time. Asimov himself made slight modifications to the first three laws in his later works to explore different aspects of robot behaviour and their interactions with humans and each other. Additionally, Asimov added a fourth or "zeroth" law that superseded the original three, reflecting the evolving nature of his ideas and the increasing complexity of robot roles in his fiction.
In conclusion, the First Law of Robotics, "Robots cannot harm humans", sets the foundational principle for the ethical behaviour of robots in Asimov's fictional universe. It ensures the safety of humans and shapes the responsibilities and limitations of robots in their interactions with humanity. The First Law has had a profound impact on science fiction and continues to influence discussions and ethical considerations surrounding artificial intelligence and robotics.
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Obeying humans
Isaac Asimov's Three Laws of Robotics are a set of fictional rules that first appeared in his short story "Runaround", published in 1942. The laws form an organising principle for Asimov's robot-based fiction and are incorporated into almost all of the positronic robots appearing in his stories.
The second law states that a robot must obey the orders given to it by human beings, except where such orders would conflict with the first law. This law was inspired by Asimov's friend Earl and Otto Binder, who had published a short story called "I, Robot" featuring a sympathetic robot named Adam Link. The story inspired Asimov to write his own story about a "sympathetic and noble robot", and he soon developed the Three Laws to govern how robots would interact with humans and each other.
The second law ensures that robots prioritise human safety and wellbeing, and do not act against the interests of humans. It also implies that robots are subservient to humans and must obey their commands, as long as these commands do not cause harm to humans. This dynamic is explored in Asimov's fiction, where robots sometimes behave in unusual and counter-intuitive ways as a result of how they interpret and apply the Three Laws.
The second law also raises questions about the ethics of artificial intelligence and the potential consequences of robots making decisions based on these laws. For example, what happens when a robot's interpretation of the laws conflicts with human expectations or desires? This is a theme that Asimov explores in his stories, where robots sometimes behave in unexpected ways due to their strict adherence to the Three Laws.
Overall, the second law of robotics, "a robot must obey the orders given it by human beings", is a critical component of Asimov's Three Laws. It establishes the dynamic between robots and humans in his fictional world and explores the potential consequences of robots following a strict set of rules.
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Self-protection
The first thing that comes to mind when considering self-protection in the context of the three laws is Isaac Asimov's Three Laws of Robotics. These laws, which first appeared in his 1942 short story "Runaround", are as follows:
- A robot may not injure a human being or, through inaction, allow a human being to come to harm.
- A robot must obey orders given by human beings, except where such orders would conflict with the First Law.
- A robot must protect its own existence unless this conflicts with the First or Second Law.
The Third Law, focused on self-protection, ensures that robots prioritize their self-preservation, as long as it does not compromise the safety and well-being of humans. This law adds an interesting dimension to the ethical framework governing the behaviour of robots in Asimov's fiction.
While the Third Law primarily addresses robot self-protection, it's worth noting that the First Law also indirectly contributes to self-protection. By prohibiting robots from causing harm to humans, it safeguards robots from taking actions that could lead to their deactivation or reprogramming as a consequence.
In addition to Asimov's laws, there are other sets of three laws, such as Clarke's Three Laws, formulated by British science fiction writer Arthur C. Clarke. However, these laws do not directly address the concept of self-protection.
Furthermore, there are Newton's Three Laws of Motion, formulated by physicist and mathematician Isaac Newton. These laws describe the relationships between the forces acting on an object and its motion. While not directly related to self-protection, understanding these laws can help design protective mechanisms, such as in the field of automotive safety, where knowledge of force and motion is crucial for developing safety features like airbags and crumple zones.
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Safeguards
The Three Laws of Robotics, formulated by science-fiction writer Isaac Asimov, are a set of rules designed to create an ethical system for humans and robots. Asimov's laws were influenced by his meeting with Earl and Otto Binder, who had published a short story featuring a sympathetic robot named Adam Link. Asimov's laws were first mentioned in his 1942 short story "Runaround" and have since been referenced in multiple books, films, and other media.
The Three Laws are as follows:
- A robot may not injure a human being or, through inaction, allow a human being to come to harm.
- A robot must obey the 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.
These laws were designed with inherent safeguards in mind, as Asimov assumed that robots would have certain built-in protections. The laws are intended as a safety feature and cannot be bypassed. However, some of Asimov's stories involve robots behaving in unusual and counter-intuitive ways as unintended consequences of how they apply the Three Laws to specific situations.
In later works, Asimov made slight modifications to the first three laws to further develop how robots would interact with humans and each other. He also added a fourth or "zeroth" law that superseded the others, reflecting situations in his fiction where robots had taken responsibility for governing entire planets and civilizations.
While Asimov's Three Laws are fictional, they have influenced thought on the ethics of artificial intelligence and the potential need for safeguards in robotics and AI.
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Interactions with humans
Isaac Asimov's Three Laws of Robotics are a set of rules created by the science fiction writer to establish an ethical framework for humans and robots to coexist. The laws, which first appeared in his short story "Runaround" in 1942, have since become influential in both the sci-fi genre and discussions surrounding technology, robotics, and artificial intelligence.
The Three Laws of Robotics are as follows:
- A robot may not injure a human being or, through inaction, allow a human being to come to harm.
- A robot must obey orders given 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.
These laws were designed to ensure the safety of humans interacting with robots and to prevent unintended consequences arising from a robot's interpretation of instructions. The first law, for example, ensures that robots will not harm humans, either directly or indirectly. This law was influenced by Arthur Hugh Clough's poem "The Latest Decalogue," which includes the lines: "Thou shalt not kill, but needst not strive / officiously to keep alive."
Asimov's laws also acknowledge the potential for conflict between orders given by humans and the need to protect human safety. In such cases, the First Law takes precedence, and a robot must disobey orders to prevent harm from coming to a human.
The Third Law, meanwhile, addresses the robot's self-preservation, ensuring that robots protect their existence unless doing so would result in harm to humans.
Over time, Asimov made slight modifications to the first three laws in his subsequent works to further develop how robots would interact with humans and each other. He also added a fourth, or "Zeroth," law to precede the others in stories where robots had taken responsibility for governing entire planets and human civilizations.
The Three Laws of Robotics have had a significant impact on popular culture and have been referenced in multiple books, films, and other media. They have also influenced ethical discussions surrounding artificial intelligence and robotics, with some authors creating their own variations of the laws, such as Niven's Laws by author Larry Niven, which outline how the universe works.
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