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Why do the things we worry about most tend to happen? How to prevent and counter Murphy's Law?(from:秒懂大百科)
02:26
Murphy's law is a heuristic principle, often expressed as: anything that can go wrong will eventually go wrong. It means that, whether due to an erroneous method or the potential for a certain error to occur, if an action is repeated, the error will happen at some point.
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The exact origin of Murphy's law is debated. The most widely accepted account states that in the mid-20th century, United States Air Force engineer and rocket expert Edward Murphy conducted a rocket test. During the test, they needed to mount 16 rocket accelerometers above a test subject. There were two methods to secure these accelerometers to their mount. However, they mistakenly chose the method that could potentially lead to disaster, resulting in the test's failure. Murphy subsequently made his famous assertion: "If there are two or more ways to do something, and one of those ways can result in a catastrophe, then someone will do it." This principle then became a guiding rule for the test team, ensuring they operated with caution to avoid mistakes. Afterwards, Murphy's law spread rapidly and became one of the significant discoveries in 20th-century Western culture.
Murphy's law is beloved by many for its conciseness and close relevance to daily life. Writer Arthur Bloch dedicated himself to studying and popularizing Murphy's law, making it widely known in the United States and Europe. Although some derivative versions deviate from the law's original intent, they have also contributed to its dissemination and popularity across various fields. After more than half a century, Murphy's law continues to exert significant influence.
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- Chinese name
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墨菲定律
- Year proposed
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1949
- Other names
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Murphy's law 、Murphy's theorem 、Murphy's rule 、Murphy's theorem
- Applicable fields
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all events influenced by probability, psychology, all aspects of life
- Proposer
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Edward Murphy
- Applied discipline
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psychology
Main Manifestations of Murphy's Law
Task complexity is often underestimated
Things are not always as simple as they seem. Even if a task or problem appears simple on the surface, there can actually be many underlying complexities and unforeseen circumstances. People often tend to underestimate the difficulty of a task and overlook potential complications, which increases the likelihood of errors. For example, a company planning to launch a new product might have its management team believing the development and launch will be quite straightforward. However, during implementation, they may discover that the product design involves far more considerations than anticipated, including market demand, competition, technical challenges, and so on. This leads to project delays and additional costs because the complexity of the task was underestimated.
Task time estimates are frequently inaccurate
Everything takes longer than expected. Regardless of careful planning, many tasks often require more time to complete than initially estimated. This can be due to unforeseen issues, delays, or other factors. This point emphasizes the importance of time management to ensure tasks are completed according to schedule. For instance, a student might think a research paper can be completed in just a few days. However, when actually conducting research and writing, they may find that more time is needed for the literature review, data analysis, and various sections of the paper. In such cases, the time estimate for the task is inaccurate, leading to time pressure and potential anxiety.
The possibility of problems cannot be ignored
Even things that can go wrong will eventually tend to go wrong. Murphy's Law holds that this emphasizes the importance of
Risk management
and preparation. Even with the best efforts to avoid mistakes, it is still necessary to plan for possible failures and problems. For example, in a manufacturing plant, machines on the production line may frequently break down. Although maintenance personnel strive to keep the equipment in good condition, problems are inevitable due to the complexity of the machines and their prolonged operation. This indicates that besides preventive maintenance, there also needs to be a plan for dealing with machine failures.
The impact of self-fulfilling prophecies
If one worries excessively about a certain situation, the likelihood of it occurring becomes higher. If one is overly concerned about a particular problem or failure, this anxiety can influence decision-making and behavior, thereby increasing the probability of the problem arising. Therefore, a positive mindset and belief are also key to coping with Murphy's law. For example, in the workplace, an employee feels extremely anxious about an upcoming important presentation and expects to fail. Influenced by the anxiety, they become nervous and make mistakes during the presentation, ultimately realizing the failure they feared. This example emphasizes the impact of beliefs and expectations on behavior and outcomes.
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Low Probability and Major Accidents
In common perception, the occurrence of low-probability events is generally overlooked. However, facts have repeatedly proven that people often make mistakes. If making mistakes is a high-probability event, then errors are likely to occur quickly; even if making mistakes is a low-probability event, given enough time, errors will eventually occur and may lead to major accidents. Explaining further using the theory of mathematical statistics: assuming the probability of a particular accident occurring in one activity is p (p>0), then the probability of at least one accident occurring in n activities (the probability of a bad event happening) is:
Pn = 1 - (1 - p)^n
No matter how small the probability p is (a low-probability event), as n becomes larger, Pn approaches 1. This aligns with the perspective of Murphy's law. From this viewpoint, Murphy's law is essentially discussing probability issues. When facing anything that could go wrong, one should not be overconfident and assume it will not fail.
The world is unpredictable, and anything is possible. For example: In April 1912, the British luxury liner
RMS Titanic
, then considered "unsinkable," unfortunately collided with an iceberg on its maiden voyage. The hull ruptured from the bow to the midsection, flooding five watertight compartments, resulting in the deaths of 1,517 people, making it one of the deadliest peacetime maritime disasters. Airplanes are consistently considered the safest mode of transport, with a fatal accident rate of only one in three million, yet approximately 1,000 people still die in air crashes globally each year.
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Anticipating Deviations and Preventing Problems Before They Arise
Murphy's law reminds people that despite potentially possessing excellent problem-solving abilities, the occurrence of crises cannot be entirely avoided. The crises described by Murphy's law are often highly random and difficult to predict, making it hard for people to take preventive measures in advance and leaving them vulnerable. However, people should pay more attention to another type of crisis that is entirely predictable and controllable. The occurrence of such crises stems from human negligence, complacency,
Conceited
, and similar factors. While these crises may appear to be accidents on the surface, their root cause lies within people themselves. Therefore, people are fully capable of avoiding accidents caused by human errors by taking various precautionary measures, remaining vigilant, formulating plans, taking preventive actions, and preparing in advance.
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Murphy's Law and Psychological Effects
Murphy's law is often used to describe unfortunate experiences in life, but in reality, these situations are not related to probability. These so-called Murphy's law events are typically not low-probability occurrences but rather common situations. People do not pay excessive attention to the probability of these events happening; instead, they use Murphy's law more to express their lamentations about their own bad luck.
The More You Fear Something, the More Likely It Is to Happen
The Wallenda effect tells people that the more one fixates on something, the easier it is to lose it. The American high-wire artist Karl Wallenda was renowned for his steady and spectacular tightrope walking skills. However, to everyone's shock, during a performance in San Juan, a coastal city in Puerto Rico, Wallenda fell from a height of 10 meters and died instantly after completing only two relatively simple moves. This performance was extremely important to Wallenda; he had meticulously considered every move and detail, having long since memorized them thoroughly. Even before formally taking the stage, he repeatedly said, "This performance is too important, I can only succeed, I cannot fail." However, in the view of Wallenda's wife, it was precisely this excessive "emphasis" that led to the tragedy. She said sorrowfully, "In past performances, he always focused solely on the act of walking the wire itself, paying no mind to anything else." But this time, he was too focused on the success or failure of the performance, resulting in an accident.
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Misfortunes Come One After Another
The
Kick Cat Effect
tells us that bad moods are contagious. This phenomenon typically occurs within social relationships, spreading like an infectious disease. For example, a boss gets angry for mishandling an important client and then vents his anger on a manager. The reprimanded manager becomes upset and returns to his office to nitpick at his secretary. The criticized secretary becomes angry, goes home, and has a big argument with his wife. The wife, feeling wronged and aggrieved, sees her child hopping around carefreely and can't help but take her anger out on the child. The child, after being scolded, becomes irritated and ultimately kicks the family cat. This chain of bad emotions is like a vicious cycle, ultimately making the person at the end of the chain the scapegoat for emotional venting.
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In summary, Murphy's law is related to psychological effects; they reveal how emotions, psychology, and social relationships influence people's experiences and behaviors in their lives.
Preventive Measures for Murphy's Law
Although Murphy's Law cannot be entirely avoided, people can take some measures to minimize its probability of occurrence and its impact:
Advance Planning and Preparation
Before starting a task, fully understand its complexity and difficulty, and formulate a detailed plan. Establish backup plans based on potential problems and unexpected situations.
Prudent Assessment of Task Difficulty
When evaluating task difficulty and time requirements, maintain objectivity and caution. Through more comprehensive and in-depth analysis and research, the complexity of the task can be assessed more accurately, avoiding underestimation of difficulty.
Risk Management and Preventive Measures
Identify and evaluate potential problems and risks, and take corresponding preventive measures. This includes planning and implementing necessary safety measures, ensuring the normal operation of equipment and systems, and preparing in advance for emergency situations.
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Effective Communication and Teamwork
By establishing good communication channels and teamwork, and sharing information promptly, various stages of task execution can be better coordinated to solve problems. Close cooperation can reduce the likelihood of misunderstandings and errors.
Positive Mindset and Self-Belief
Maintaining a positive mindset and confidence is key to coping with Murphy's law. By proactively facing problems and challenges and focusing on solutions, one can reduce anxiety and negative impacts, thereby increasing the likelihood of success.
Although it is impossible to completely avoid the occurrence of Murphy's law, through reasonable planning, preparation, and a positive attitude, people can minimize the probability of errors and encountering setbacks.
References
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