Top 10 Inventors Who Regretted Their Inventions

Inventors across the globe have all impacted the world in some way with their many inventions.

Some of them, however, regret ever making their inventions or at least wish their creation was used differently.

The Top Ten

J. Robert Oppenheimer (Atomic Bomb)

Oppenheimer served as the wartime director of the Los Alamos Laboratory, overseeing the development of the first nuclear weapons during World War II. After witnessing their destructive power, he expressed profound moral regret about his role in unleashing such force on the world.

Many people make the mistake of attributing the creation of the atomic bomb to Albert Einstein, but Einstein never worked on developing the deadly weapon. Instead, it was Oppenheimer who directed work on the atomic bomb during World War II.
He and many of the project staff were very upset about the bombing of Nagasaki, as they did not feel the second bomb was necessary from a military point of view. Oppenheimer later stated he felt like he had blood on his hands and began working with the U.S. Atomic Energy Commission to control the use of nuclear weapons.

Who wouldn't regret making such an awful thing?
Alfred Nobel (Dynamite)

Nobel invented dynamite in 1867, a powerful, safer-to-handle explosive that was initially intended for use in mining and construction projects. He was reportedly distressed by the misapplication of his invention in warfare, which led him to establish the Nobel Prizes to promote peace and human advancement.

Alfred Nobel might be more famous for starting the Nobel Peace Prize, but that was because he wanted to redeem himself after he created dynamite in the 1860s. He created dynamite to help his family's mining business.
Of course, the army decided that if it could be used to obliterate rocks, it was good enough to obliterate enemies, which is exactly how dynamite was eventually used. In 1888, his brother Ludwig died, but the papers mistakenly reported that Alfred had died.
The obituary said, "The merchant of death is dead," and claimed that Nobel "became rich by finding ways to kill more people faster than ever before." Nobel was understandably shaken by that and felt remorse for inventing dynamite after that.
Mikhail Kalashnikov (AK-47)

Kalashnikov, a Soviet army officer, designed the AK-47 assault rifle in the late 1940s, creating a durable and highly reliable weapon that became one of the most widely used firearms in the world. Although proud of its technical simplicity, he expressed sorrow in his later years that his creation had caused so many deaths and was used by criminals and terrorists.

Mikhail Kalashnikov invented the AK-47 in 1947. It is the most widely used assault rifle in the world and with good reason, as it is cheap and easy to produce as well as being a sturdy and lightweight weapon.
Before his death in 2014, Kalashnikov wrote several letters to the Russian Orthodox Church, which later became public. In one of them, he wrote: "I keep having the same unsolved question: if my rifle claimed people's lives, then can it be that I... a Christian and an Orthodox believer, was to blame for their deaths?"

I can understand why he feels guilt, but if it wasn't his invention that was widely used, it would have been another one.
Philo Farnsworth (Television)

Farnsworth was an American inventor who developed the first fully functional all-electronic television system, filing his key patent in 1927. He later became disappointed with the commercialism and low quality of television programming and limited his own children's exposure to it.

When Philo Farnsworth created the television, he wanted it to be used for learning. However, he died feeling people were instead wasting their lives being lazy and watching things that don't help them grow intellectually. He even forbade his son from watching television, telling him: "There's nothing worthwhile on it, and we're not going to watch it in this household, and I don't want it in your intellectual diet."

Wow, he must have really hated his creation if he didn't want his son watching TV.
Ethan Zuckerman (Pop-Up Ad)

Zuckerman created the first pop-up advertisement while working at Tripod.com in the mid-1990s as a way to separate ads from page content. He later apologized for the invention, acknowledging that its intrusive nature damaged the user experience of the early web.

Ethan Zuckerman apologized for his creation a few years ago, saying he only had good intentions. In the late '90s, Zuckerman worked for Tripod.com, a website that marketed content and services for college graduates.
At some point, the company wanted to find ways to make more money. They tried a few things and eventually found that advertising was their best source of revenue. In his apology, he said: "It was a way to associate an ad with a user's page without putting it directly on the page, which advertisers worried would imply an association between their brand and the page's content. I wrote the code to launch the window and run an ad in it. I'm sorry. Our intentions were good."
Robert Propst (Office Cubicle)

Propst developed the Action Office system in the 1960s, intending to create a flexible and dynamic workspace that would boost productivity. He later became disillusioned when the concept was reduced to rigid cubicle farms that dominated corporate offices.

Robert Propst came up with the idea of the office cubicle in the 1960s. It was intended to give employees more freedom and privacy. Here is where it all went wrong: companies saw Propst's invention as a way to save money. By making them a little smaller, they could fit a few more people into the same space.
In interviews, he said: "The cubiclizing of people in modern corporations is monolithic insanity" and "The dark side of this is that not all organizations are intelligent and progressive. Lots are run by crass people who can take the same kind of equipment and create hellholes."
Victor Gruen (Shopping Mall)

Gruen, an Austrian architect, is credited with designing the first enclosed, climate-controlled suburban shopping mall in the United States, envisioning it as a town center with civic and cultural functions. He later became horrified by the proliferation of vast, soulless, and isolated structures that contributed to suburban sprawl and degraded urban life.

The first mall in the U.S., known as Southdale Center Mall, was built in 1956 in Edina, Minnesota. Back when cities were smaller and more concentrated, everyone lived downtown, so everyone was close to all the shops.
As suburbs developed, it became harder for people living outside the city to buy the things they needed. Victor Gruen's solution was the shopping mall - an area where people could easily get all the things they needed, which would also have green spaces and art and overall feel more open.
The idea caught on quickly, but, as always, some people exploited the concept and removed everything that made the mall look nice, like the art and plants, in favor of, you guessed it, more stores, all in a single enclosed building. In 1978, Victor Gruen said: "I would like to take this opportunity to disclaim paternity once and for all. I refuse to pay alimony to those bastard developments. They destroyed our cities."
Kamran Loghman (Pepper Spray)

Loghman was a key contributor to the development of pepper spray for the FBI in the 1980s as a non-lethal tool for law enforcement. He later expressed concern and regret when the incapacitant began to be widely used by police against peaceful protesters and the general public.

Pepper spray became a weapon in the 1980s when Kamran Loghman worked for the FBI. It was intended to be used as a non-lethal way to pacify someone at range who is threatening a police officer or other citizen.
After an incident at the University of California in 2011, Loghman wasn't pleased with how his creation was used by police officers on "docile protesters." He said to the New York Times: "I have never seen such an inappropriate and improper use of chemical agents."
Dong Nguyen (Flappy Bird)

Nguyen developed the highly addictive mobile game Flappy Bird, which became a global phenomenon after its 2013 release. Overwhelmed by its success and the distress it caused some players, he abruptly removed the app from both the Apple App Store and Google Play.

Honestly, with Nintendo's strict copyright policies and just wanting to be left alone, I can't blame Mr. Nguyen.
Anna Jarvis (Mother's Day)

Jarvis successfully campaigned to establish Mother's Day as an official national holiday in the United States in 1914, intending it to be a private day of personal tribute. She later fiercely opposed the holiday's commercialization and spent much of her later life trying to have it rescinded.

Anna Jarvis came up with Mother's Day because she loved her mother and felt that mothers weren't recognized and appreciated enough. The first Mother's Day was celebrated in 1908 at her church. She chose white carnations as a symbol of Mother's Day because it was her mother's favorite flower.
Her idea caught on, and in 1914, the second Sunday of May was legislated to be Mother's Day. As always, some people saw this as a way to make money. After around four years, card companies and chocolatiers got involved, and the price for white carnations went up.
Anna Jarvis hated that the nice day she created became a day for profit, and she regretted her creation all her life.

The Newcomers

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Tony Hoare (Null Reference)

At a software conference in 2009, he wrote:
"I call it my billion-dollar mistake. It was the invention of the null reference in 1965. At that time, I was designing the first comprehensive type system for references in an object-oriented language (ALGOL W). My goal was to ensure that all use of references should be absolutely safe, with checking performed automatically by the compiler. But I couldn't resist the temptation to put in a null reference, simply because it was so easy to implement. This has led to innumerable errors, vulnerabilities, and system crashes, which have probably caused a billion dollars of pain and damage in the last forty years."
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Lou Montulli (Blink Tag)

Lou Montulli, a founding engineer at Netscape, introduced the HTML blink tag in the early days of the web to draw attention to new content on a page. He later came to view the flashing text effect as an irritating and distracting nuisance that detracted from the user experience, and he expressed regret over its widespread, often excessive, use across the internet.

The Contenders

John Sylvan (K-Cup)

Sylvan invented the K-Cup portion pack in 1997 while working for Keurig, offering a simple, single-serving way to brew coffee. He later stated his regret over the invention, citing the significant environmental impact caused by the disposable plastic pods.

Guess who doesn't have a Keurig coffee maker in his home? That's right, the creator of the Keurig K-Cups himself! Sylvan said: "I feel bad sometimes that I ever did it," and that is because these cups are not only expensive, they aren't recyclable or biodegradable, so there are literally tons filling up landfills.
He said a few years ago: "It's like a cigarette for coffee, a single-serve delivery mechanism for an addictive substance."
Tim Berners-Lee (HTTP Forward Slashes)

Berners-Lee is best known as the inventor of the World Wide Web, creating foundational elements such as HTTP, HTML, and URLs in the late 1980s. He later apologized for including the double forward slashes in web addresses, noting they were unnecessary and wasted both computer memory and human keystrokes.

Sir Tim Berners-Lee is known as the creator of the World Wide Web. However, there is a part of his work he regrets: the two slashes (//) next to the http address of every web page. They were included due to a common programming convention at the time. Berners-Lee admits that they're completely unnecessary, saying: "Really, if you think about it, it doesn't need the //. I could have designed it not to have the //."

Lots of keystrokes have been wasted typing those two characters.
Orville Wright (Airplane)

Along with his brother Wilbur, Orville Wright is credited with inventing and building the world's first successful airplane, achieving the first sustained flight of a heavier-than-air machine in 1903. Witnessing the immense human destruction caused by aerial bombardment during the two world wars led him to lament the military application of his greatest achievement.

Orville and Wilbur Wright are famous for inventing and being the first to fly in a powered airplane. Unlike his brother, Orville Wright lived to see their invention used in both World War I and World War II.
When first giving airplanes to the US Army, the brothers imagined that they would be used for observation. After WWII, Orville Wright said that he and his brother had "dared to hope we had invented something that would bring lasting peace to the earth. But we were wrong."
Wally Conron (Labradoodle)

Conron, the former breeding manager for the Royal Guide Dog Association of Australia, intentionally crossed a Labrador Retriever and a Standard Poodle in 1989 to create a hypoallergenic service dog. He later publicly confessed deep regret over opening a Pandora's box of irresponsible breeding practices that resulted in poorly bred, unhealthy animals.
Alfred Binet (IQ Test)

Binet, a French psychologist, developed the first practical intelligence test in the early 1900s to identify students who needed special educational assistance. He warned that his test could be misused to label children as permanently unintelligent or to limit their opportunities rather than provide support.
John Larson (Lie Detector)

Larson, a police officer and medical student, developed the continuous method of recording blood pressure for lie detection, creating the first polygraph instrument in 1921. He later regretted this work, becoming concerned about the polygraph's growing use in non-criminal matters and its potential to produce flawed and misleading results.
Tom Karen (Raleigh Chopper)

Karen was a designer at Ogle Design who created the iconic Raleigh Chopper bicycle, a highly successful product released in 1969. He later expressed reservations about the bicycle's unstable handling, acknowledging that its design made it a challenging and potentially dangerous ride for children.
Vincent Connare (Comic Sans)

Connare, a Microsoft font designer, created the casual typeface Comic Sans in 1994, intending it for speech bubbles and other informal uses. He later said he never anticipated its widespread and inappropriate use in serious, professional, and formal documents, which he now regrets.
Agatha Christie (Hercule Poirot)

Christie, the famous English novelist, introduced the Belgian detective Hercule Poirot in her first novel, The Mysterious Affair at Styles, in 1920. Despite the character's enormous popularity, she admitted in her later years that she found his fastidious personality and habits irritating and tedious to write.

Poirot first appeared in The Mysterious Affair at Styles (published in 1920) and exited in Curtain (published in 1975). By 1930, Agatha Christie found Poirot "insufferable," and by 1960 she felt that he was a "detestable, bombastic, tiresome, ego-centric little creep."
Yet the public loved him, and Christie refused to kill him off, claiming that it was her duty to produce what the public liked. Essentially, Poirot, being her most beloved creation and her best source of revenue, meant she had no choice but to keep him around.
Robert Watson-Watt (Radar)

Watson-Watt, a Scottish physicist, led the team that developed the first practical airborne radar systems, which were crucial to the defense of Great Britain during World War II. He later became troubled by speed-detection cameras that used his invention, humorously quipping that he would never have invented radar had he known about this future, irritating application.
Peter L. Jensen (Loudspeaker)

Peter L. Jensen, working with Edwin Pridham, invented the moving-coil loudspeaker in 1915, an innovation that greatly improved the projection and quality of sound reproduction. Jensen later expressed concern that his device, originally intended to enhance public address systems, was being used to generate unpleasantly loud noise, contributing to noise pollution.
Bill Burr (Strong Password Guidelines)

Burr was the author of the 2003 National Institute of Standards and Technology (NIST) guide, which introduced widely adopted requirements for creating strong passwords, such as mandatory periodic changes and the use of special characters. He later admitted that the complex rules he championed were cumbersome and likely led users to choose simpler, less secure passwords, undermining the very goal of the guidelines.

I cannot even begin to fathom how much time stupid password requirements on the internet have wasted, or the billions in damages they caused.
John McAfee (McAfee Anti-Virus)

McAfee, a pioneer in computer security, founded McAfee Associates in 1987, creating one of the first commercial anti-virus software products for personal computers. Years after his departure from the company, he publicly expressed regret about the product, acknowledging that the pervasive security issues it addressed had become a greater nuisance than the original problems it was designed to solve.
Bob and Kirkland Gable (Electronic Tagging)