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Misinformation lends itself to social contagion – here’s how to recognize and combat it

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Misinformation
Misinformation on social media has the potential to manipulate millions of people.
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Shaon Lahiri, College of Charleston

Misinformation lends itself to social contagion – here’s how to recognize and combat it

In 2019, a rare and shocking event in the Malaysian peninsula town of Ketereh grabbed international headlines. Nearly 40 girls age 12 to 18 from a religious school had been screaming inconsolably, claiming to have seen a “face of pure evil,” complete with images of blood and gore.

Experts believe that the girls suffered what is known as a mass psychogenic illness, a psychological condition that results in physical symptoms and spreads socially – much like a virus.

I’m a social and behavioral scientist within the field of public health. I study the ways in which individual behavior is influenced by prevailing social norms and social network processes, across a wide range of behaviors and contexts. Part of my work involves figuring out how to combat the spread of harmful content that can shape our behavior for the worse, such as misinformation.

Mass psychogenic illness is not misinformation, but it gives researchers like me some idea about how misinformation spreads. Social connections establish pathways of influence that can facilitate the spread of germs, mental illness and even behaviors. We can be profoundly influenced by others within our social networks, for better or for worse.

The spreading of social norms

Researchers in my field think of social norms as perceptions of how common and how approved a specific behavior is within a specific network of people who matter to us.

These perceptions may not always reflect reality, such as when people overestimate or underestimate how common their viewpoint is within a group. But they can influence our behavior nonetheless. For many, perception is reality.

Social norms and related behaviors can spread through social networks like a virus can, but with one crucial caveat. Viruses often require just one contact with a potential host to spread, whereas behaviors often require multiple contacts to spread. This phenomenon, known as complex contagion, highlights how socially learned behaviors take time to embed.

Watch the people in this video and see how you react.

Fiction spreads faster than fact

Consider a familiar scenario: the return of baggy jeans to the fashion zeitgeist.

For many millennials like me, you may react to a friend engaging in this resurrected trend by cringing and lightly teasing them. Yet, after seeing them don those denim parachutes on multiple occasions, a brazen thought may emerge: “Hmm, maybe they don’t look that bad. I could probably pull those off.” That’s complex contagion at work.

This dynamic is even more evident on social media. One of my former students expressed this succinctly. She was looking at an Instagram post about Astro Boy Boots – red, oversize boots based on those worn by a 1952 Japanese cartoon character. Her initial skepticism quickly faded upon reading the comments. As she put it, “I thought they were ugly at first, but after reading the comments, I guess they’re kind of fire.”

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Moving from innocuous examples, consider the spread of misinformation on social media. Misinformation is false information that is spread unintentionally, while disinformation is false information that is intentionally disseminated to deceive or do serious harm.

Research shows that both misinformation and disinformation spread faster and farther than truth online. This means that before people can muster the resources to debunk the false information that has seeped into their social networks, they may have already lost the race. Complex contagion may have taken hold, in a malicious way, and begun spreading falsehood throughout the network at a rapid pace.

People spread false information for various reasons, such as to advance their personal agenda or narrative, which can lead to echo chambers that filter out accurate information contrary to one’s own views. Even when people do not intend to spread false information online, doing so tends to happen because of a lack of attention paid to accuracy or lower levels of digital media literacy.

Inoculation against social contagion

So how much can people do about this?

One way to combat harmful contagion is to draw on an idea first used in the 1960s called pre-bunking. The idea is to train people to practice skills to spot and resist misinformation and disinformation on a smaller scale before they’re exposed to the real thing.

The idea is akin to vaccines that build immunity through exposure to a weakened form of the disease-causing germ. The idea is for someone to be exposed to a limited amount of false information, say through the pre-bunking with Google quiz. They then learn to spot common manipulation tactics used in false information and learn how to resist their influence with evidence-based strategies to counter the falsehoods. This could also be done using a trained facilitator within classrooms, workplaces or other groups, including virtual communities.

Then, the idea is to gradually repeat the process with larger doses of false information and further counterarguments. By role-playing and practicing the counterarguments, this resistance skills training provides a sort of psychological innoculation against misinformation and disinformation, at least temporarily.

Importantly, this approach is intended for someone who has not yet been exposed to false information – hence, pre-bunking rather than debunking. If we want to engage with someone who firmly believes in their stance, particularly when it runs contrary to our own, behavioral scientists recommend leading with empathy and nonjudgmentally exchanging narratives.

Debunking is difficult work, however, and even strong debunking messages can result in the persistence of misinformation. You may not change the other person’s mind, but you may be able to engage in a civil discussion and avoid pushing them further away from your position.

Spreading facts, not fiction

When everyday people apply this with their friends and loved ones, they can train people to recognize the telltale signs of false information. This might be recognizing what’s known as a false dichotomy – for instance, “either you support this bill or you HATE our country.”

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Another signal of false information is the common tactic of scapegoating: “Oil industry faces collapse due to rise in electric car ownership.” And another is the slippery slope of logical fallacy. An example is “legalization of marijuana will lead to everyone using heroin.”

All of these are examples of common tactics that spread misinformation and come from a Practical Guide to Pre-Bunking Misinformation, created by a collaborative team from the University of Cambridge, BBC Media Action and Jigsaw, an interdisciplinary think tank within Google.

This approach is not only effective in combating misinformation and disinformation, but also in delaying or preventing the onset of harmful behaviors. My own research suggests that pre-bunking can be used effectively to delay the initiation of tobacco use among adolescents. But it only works with regular “booster shots” of training, or the effect fades away in a matter of months or less.

Many researchers like me who study these social contagion dynamics don’t yet know the best way to keep these “booster shots” going in people’s lives. But there are recent studies showing that it can be done. A promising line of research also suggests that a group-based approach can be effective in maintaining the pre-bunking effects to achieve psychological herd immunity. Personally, I would bet my money on group-based approaches where you, your friends or your family can mutually reinforce each other’s capacity to resist harmful social norms entering your network.

Simply put, if multiple members of your social network have strong resistance skills, then your group has a better chance of resisting the incursion of harmful norms and behaviors into your network than if it’s just you resisting alone. Other people matter.

In the end, whether we’re empowering people to resist the insidious creep of online falsehoods or equipping adolescents to stand firm against peer pressure to smoke or use other substances, the research is clear: Resistance skills training can provide an essential weapon for safeguarding ourselves and young people from harmful behaviors.

Shaon Lahiri, Assistant Professor of Public Health, College of Charleston

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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The Knowledge

When Did Water Vending Machines Become a Thing?

When did water vending machines appear in America? Explore their history from a 1908 penny water vendor to the refill machines of the 1970s and 1980s.

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When did water vending machines appear in America? Explore their history from a 1908 penny water vendor to the refill machines of the 1970s and 1980s.
Image Credit: Adobe Firefly

You’ve probably seen them hundreds of times.

They sit outside supermarkets, convenience stores and shopping centers—or sometimes stand alone in small roadside kiosks. You bring an empty bottle, usually one, three or five gallons, put in some money, push a button and watch purified water pour into your container.

For many people in California, Arizona and other parts of the American West, water vending machines seem like they’ve simply always been there.

But when did we actually start buying water this way?

The answer takes us back more than a century, although the machines we recognize today didn’t really arrive until the 1970s.

The Water Vending Machine’s Surprising Ancestor

The story begins in Boston in 1908 with a man named Lawrence Luellen.

Luellen was working on something that sounds surprisingly modern: a machine that would allow someone to pay a penny and receive a clean drink of water in an individual disposable cup.

At the time, public drinking water was often consumed from a communal cup or metal dipper—a practice that increasingly worried public-health officials because of the potential spread of disease.

Luellen developed a paper drinking cup along with what became known as the Luellen Cup & Water Vendor. The porcelain machine contained water, ice, disposable cups and a place for discarded cups.

For one penny, a customer could get a drink of cold water in a fresh cup.

Historical records at Lafayette College’s Hugh Moore Dixie Cup Company Collection show that Luellen completed work on the vending apparatus in early 1908. His company, the American Water Supply Company of New England, was incorporated on April 4 of that year.

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There was just one problem.

The complete water machine was expensive to manufacture.

The company eventually concentrated on selling the disposable cups and cup dispensers instead. Those cups ultimately evolved into one of America’s most recognizable household products—the Dixie Cup.

So although Luellen’s machine wasn’t the five-gallon refill station we know today, the basic idea was already there:

Put money into a machine and receive drinking water.

The Modern Water Vending Machine Arrives

The next major chapter didn’t occur until roughly 65 years later.

According to histories of the water-vending industry, the first practical machines designed to sell purified water in bulk appeared during the mid-1970s.

These were fundamentally different from Luellen’s machine.

Instead of giving customers a cup of water, the new machines treated water—typically municipal tap water—and allowed customers to fill their own reusable containers.

And we have unusually strong evidence that these machines were operating by 1976.

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On July 26, 1976, the U.S. Environmental Protection Agency issued a memorandum specifically addressing the regulatory status of water vending machines.

The EPA described machines that filtered and disinfected water with ultraviolet light and then dispensed the treated water into a customer’s own container using a coin-operated mechanism.

In other words, by the summer of 1976, the basic water-refill machine many of us recognize today was already operating in the United States.

Why the 1970s?

The timing wasn’t accidental.

Americans had become increasingly concerned about pollution and drinking-water quality during the 1960s and 1970s.

Congress passed the Safe Drinking Water Act in 1974, establishing a federal framework for protecting public drinking-water supplies. National drinking-water regulations followed during the decade.

Meanwhile, technologies such as filtration, activated carbon treatment, ultraviolet disinfection and eventually reverse osmosis made it practical to build relatively compact systems capable of treating municipal water at the point where it was sold.

The result was a new business opportunity:

Instead of transporting thousands of bottles of water to a store, a vending company could connect a machine to the local water supply, purify that water on site and sell it by the gallon.

Customers supplied the bottle.

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California Helps Turn It Into a Business

California became one of the industry’s most important early markets.

One company that would eventually become a major player was founded by Robert G. Miller.

In 1983, Miller established Bottle Water Vending Inc., the predecessor of Glacier Water Services.

The company manufactured water vending machines and placed many of them outside supermarkets. Customers brought their own containers, while participating stores often sold reusable plastic jugs nearby.

The machines treated municipal water using combinations of filtration, reverse osmosis, carbon treatment and ultraviolet sterilization.

The idea caught on quickly.

In 1984, the company expanded from California into Arizona.

Nevada followed in 1986.

By 1987, the company reportedly had nearly 900 water vending machines operating.

Texas and Florida followed in 1988.

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The familiar supermarket water-refill station was becoming a significant business.

Then Came the Drive-Up Water Kiosk

Another variation appeared at almost exactly the same time.

In 1984, Lani and Don Dolifka developed what became Watermill Express in Colorado.

Their idea was an automated stand-alone purification kiosk capable of taking municipal water, processing it through multiple purification stages and selling the finished drinking water directly to customers.

Instead of walking into a supermarket, customers could pull up to the kiosk with their bottles.

Later Watermill Express systems were designed to accommodate reusable containers ranging from one to five gallons, using treatment processes including sediment filtration, activated carbon, reverse osmosis, ultraviolet disinfection and ozone treatment.

That basic concept remains familiar today.

Why Five-Gallon Bottles?

The five-gallon container was already well established through traditional bottled-water delivery services.

But refill vending changed the economics.

Instead of purchasing another filled bottle—or waiting for a delivery—a customer could keep the same container and refill it repeatedly.

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That eliminated much of the packaging and transportation involved with conventional bottled water.

It also made purified drinking water relatively inexpensive.

Bring the jug.

Buy the water.

Take the same jug home.

Bring it back when it’s empty.

More than four decades later, that’s still essentially how the system works.

So Who Invented the Modern Water Vending Machine?

That’s where the story gets complicated.

There doesn’t appear to be a single universally recognized inventor of the modern bulk purified-water vending machine.

Lawrence Luellen developed an important early coin-operated water vending concept in 1908, but his machine dispensed an individual drink and disposable cup—not gallons of purified water into a customer’s reusable bottle.

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The modern bulk-water machine emerged much later, apparently during the mid-1970s, as water-treatment technology and consumer concern about drinking-water quality converged.

By 1976, the EPA was already dealing with the regulatory implications of machines that treated municipal water and sold it through coin-operated dispensers into customers’ own containers.

Entrepreneurs and companies then refined and expanded the idea during the 1980s.

From a Penny Cup to Five Gallons at a Time

The evolution is remarkable.

1908: Put in a penny and receive a cup of cold water.

Mid-1970s: Machines begin treating municipal water and selling purified water in bulk.

1976: The EPA documents coin-operated machines dispensing treated water into customers’ containers.

1983: Bottle Water Vending, the predecessor of Glacier Water Services, begins operations in California.

1984: Glacier’s predecessor expands into Arizona, while Watermill Express develops its automated purification kiosk in Colorado.

Late 1980s and beyond: Water refill machines become increasingly familiar outside supermarkets and at stand-alone locations throughout the United States.

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Today, paying a few coins—or tapping a card—and filling a five-gallon jug might seem thoroughly ordinary.

But the machine sitting outside your neighborhood supermarket represents more than a century of evolution in how Americans buy something that once seemed almost unimaginable to sell from a vending machine:

a drink of water.

Sources and Further Reading

U.S. EPA — Status of Water Vending Machines Under Public Law 93-523

Lafayette College — Hugh Moore Dixie Cup Company Collection

U.S. EPA — Safe Water Research Milestones

Glacier Water Services Company History

World Vision — History of Watermill Express

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High Speed Rail

Brightline West Construction Advances, But Opening Timeline Shifts Beyond the 2028 Olympics

Construction continues to expand along Interstate 15 as Brightline West moves closer to connecting Southern California and Las Vegas with 200 mph electric trains, though the opening timeline has shifted to late 2029.

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Construction continues to expand along Interstate 15 as Brightline West moves closer to connecting Southern California and Las Vegas with 200 mph electric trains, though the opening timeline has shifted to late 2029.
Image Credit: Brightline West

The vision of traveling between Southern California and Las Vegas in about two hours by high-speed rail is steadily becoming more tangible as Brightline West expands construction activity along the Interstate 15 corridor.

Since construction officially began in 2025, work has continued to ramp up in both California and Nevada. Motorists traveling I-15 may have noticed increased construction activity, survey crews, utility work, and periodic lane closures as the project moves from planning into full-scale development.

Construction Is Becoming More Visible

Brightline West’s 218-mile all-electric high-speed rail line will connect Rancho Cucamonga, California, with Las Vegas, Nevada, using the median of Interstate 15 for much of the route.

Current work includes:

  • Utility relocation
  • Geotechnical investigations
  • Site preparation
  • Early civil construction
  • Continued work around future station locations

As construction progresses, travelers should expect additional traffic impacts along portions of I-15 while crews prepare for bridges, guideways, track installation, and station construction.

A New Timeline

One of the biggest developments since construction began is a revised completion schedule.

While Brightline West was once expected to open before the 2028 Los Angeles Olympic Games, current projections now place passenger service in late 2029.

Large infrastructure projects frequently experience schedule adjustments due to inflation, labor availability, permitting, and supply chain challenges. Although the delay means Olympic visitors are unlikely to ride the line, construction continues to move forward.

Four Passenger Stations Planned

The line will include stations at:

  • Las Vegas
  • Apple Valley
  • Hesperia
  • Rancho Cucamonga

Passengers traveling from Los Angeles will transfer to Brightline West using Metrolink at Rancho Cucamonga, creating an important connection between Southern California’s commuter rail network and the new high-speed line.

Fast, Electric Travel

When complete, Brightline West trains are expected to operate at speeds approaching 200 mph, reducing travel time between Rancho Cucamonga and Las Vegas to approximately 2 hours and 10 minutes.

The fully electric trains are being manufactured by Siemens and are designed to offer a comfortable alternative to one of America’s busiest highway corridors.

Looking Ahead

The next major milestones will likely include visible bridge construction, elevated guideways, station buildings, track installation, electrical systems, and eventually testing of the first trainsets.

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While passengers will have to wait a bit longer than originally hoped, Brightline West remains one of the most ambitious passenger rail projects currently under construction in the United States.

For Southern California, it represents more than a faster trip to Las Vegas—it could signal the beginning of a new era for high-speed passenger rail in the American West.

Have you driven the I-15 corridor recently? Have you seen any Brightline West construction? Share your observations in the comments below, and subscribe to the STM Daily News newsletter for more transportation and infrastructure updates.

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The Knowledge

Exploring the Best Neighborhoods in Downtown Los Angeles

From the Arts District and Little Tokyo to the Historic Core and Bunker Hill, discover the best neighborhoods in Downtown Los Angeles and what makes each one worth exploring.

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Last Updated on August 5, 2026 by Daily News Staff

Best Neighborhoods in Downtown Los Angeles

The Best Neighborhoods in Downtown Los Angeles 

Downtown Los Angeles has undergone one of the most remarkable transformations of any urban center in the United States. Once known primarily as the city’s business district, DTLA has evolved into a vibrant collection of neighborhoods, each offering its own unique character, history, dining, entertainment, and cultural experiences.

Whether you’re a first-time visitor, a longtime Angeleno, or planning your next weekend adventure, these are some of Downtown LA’s must-visit neighborhoods.

Arts District: Where Creativity Comes to Life

The Arts District has become one of the city’s most exciting destinations. Former warehouses have been transformed into lofts, art galleries, coffee shops, breweries, and award-winning restaurants.

Visitors can spend hours exploring colorful murals, browsing independent boutiques, and discovering public art around nearly every corner. It’s a neighborhood that celebrates creativity while preserving its industrial roots.

Perfect for: Art lovers, photographers, foodies, and nightlife.

Historic Core: A Walk Through Old Los Angeles

The Historic Core showcases Downtown LA’s architectural heritage. Along Broadway and surrounding streets, beautifully restored theaters, historic hotels, and early 20th-century buildings tell the story of a booming city during Hollywood’s Golden Age.

Highlights include the iconic Bradbury Building, Grand Central Market, and numerous rooftop restaurants overlooking the skyline.

Perfect for: History buffs and architecture enthusiasts.

South Park: Entertainment Central

South Park is home to some of Los Angeles’ biggest attractions, including LA Live and Crypto.com Arena. The neighborhood has added thousands of apartments, new restaurants, hotels, and entertainment venues over the past two decades.

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Whether you’re attending a Lakers game, a concert, or simply enjoying dinner before an event, South Park offers something for everyone.

Perfect for: Sports fans, concerts, and nightlife.

The Best Neighborhoods in Downtown Los Angeles

Little Tokyo: A Cultural Treasure

One of only a handful of historic Japantowns remaining in the United States, Little Tokyo offers authentic Japanese cuisine, specialty shops, cultural events, museums, and peaceful gardens.

From fresh sushi and ramen to Japanese bakeries and tea houses, visitors can experience generations of cultural heritage in just a few city blocks.

Perfect for: Families, food lovers, and cultural exploration.

Bunker Hill: Downtown’s Cultural Heart

Bunker Hill combines modern architecture with world-class arts and culture. Home to Walt Disney Concert Hall, The Broad, the Museum of Contemporary Art, and Grand Park, this neighborhood is ideal for visitors looking to experience Downtown’s artistic side.

Its dramatic skyline and public spaces also make it one of the most photographed areas in Los Angeles.

Perfect for: Museum lovers and architecture fans.

Financial District: The Skyline of Los Angeles

Glass skyscrapers, luxury hotels, and bustling sidewalks define the Financial District. While it remains the city’s business center during the workweek, the neighborhood also offers excellent dining, rooftop lounges, and convenient access to other parts of Downtown.

Chinatown: Tradition Meets Modern LA

Los Angeles’ Chinatown blends rich history with a growing collection of contemporary restaurants, galleries, and community events. Visitors can enjoy traditional cuisine alongside modern culinary experiences while exploring one of the city’s oldest cultural neighborhoods.

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Fashion District: A Shopper’s Paradise

Covering more than 100 city blocks, the Fashion District is one of the largest garment centers in the country. Whether you’re searching for fabrics, clothing, accessories, or bargains at Santee Alley, this neighborhood attracts shoppers from across Southern California.

A Downtown That Continues to Evolve

Downtown Los Angeles isn’t just one destination—it’s a collection of neighborhoods that reflect the city’s diversity, creativity, and resilience. From historic landmarks and world-class museums to vibrant street art and internationally inspired cuisine, DTLA offers something new around nearly every corner.

Whether you’re planning a day trip or an extended visit, exploring these neighborhoods is one of the best ways to experience the energy and history of Los Angeles.

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