Lost futures

We were promised jetpacks: 10 futures that never arrived

Image: isaac.

From jetpacks to robot servants, past generations had big dreams for the 21st century. Magazines, sci-fi writers, and even scientists once imagined a future far flashier than today’s reality. But many of these predictions never came true—or at least not in the ways they expected. Here's a roundup of 10 things we were supposed to have mastered by now… but haven’t.

Image: SpaceX

In the 1960s, Bell Aerosystems developed a working jetpack prototype, and the media rushed to predict that personal flight would soon be common.

The Bell Rocket Belt was even showcased at the 1964 World’s Fair, but its 21-second flight limit and high fuel consumption prevented it from achieving mass adoption. Modern versions exist but are expensive and impractical for daily use.

Image: MeSSrro

Popular Mechanics and other similar magazines predicted that flying cars would fill the skies by the turn of the millennium.

Despite prototypes like the quirky Aerocar of the 1950s and today’s advances in vertical takeoff and electric aviation, flying cars remain more dream than reality.

Image: NASA

Another 20th-century dream cut short: after the 1969 moon landing, many experts expected permanent lunar bases by the year 2000.

However, while NASA and many other space agencies proposed moon settlements, political and financial cuts halted long-term plans. Only robotic missions have visited our cosmic companion since 1972.

Image: Mick Haupt

Post-WWII futurists believed that humanity would eventually engineer the weather using satellites or ground tech. Projects like "Project Stormfury" attempted hurricane modification, but the results were inconclusive.

Cloud seeding exists, but its effectiveness is debated, and large-scale weather control remains out of reach.

Image: Possessed Photography

Since the 1950s, popular media such as The Jetsons have promised human-like domestic robots. While Roombas and virtual assistants like Alexa exist, most prototypes of humanoid home robots still struggle with dexterity, reliability, and cost.

Unfortunately, for now, the bulk of household cleaning still falls to humans rather than their long-imagined robotic helpers.

Image: Jerrick Castillo

Visionaries like Jacques Cousteau imagined thriving oceanic cities by the 21st century.

Though experimental habitats like Conshelf and SeaLab were tested, persistent challenges such as pressure and high costs of building make long-term underwater living largely unrealistic.

Image: Riku Lu

Sci-fi from the 1980s often portrayed people learning languages or skills in seconds with the aid of advanced technology.

Brain–computer interfaces do exist, but they remain in early developmental stages, and the idea of "downloading" information directly into the human brain is far beyond the capabilities of current neuroscience.

Image: Michael Pointner

Inspired by shows like Star Trek, people thought teleportation might be real by now.

Quantum teleportation has been achieved at the particle level, but it doesn’t move matter—only quantum states. For now, human teleportation remains firmly in the realm of fiction.

Image: Daniele Franchi

Einstein’s theories sparked dreams of real-life time travel by manipulating relativity.

While time dilation is a real phenomenon observed at extreme speeds and in strong gravitational fields, constructing a machine capable of traveling into the past remains impossible under our current understanding of physics.

Image: Ksenia Yakovleva

Mid-century futurists expected food to eventually be replaced with efficient tablets.

While nutrient pills and protein bars exist, actual meals still require bulk calories and texture, something a pill just can’t provide. Even in specialized environments—like astronauts aboard space stations—the idea remains highly impractical for real diets.

Decoding

Being a "treasured guest" is not a compliment. This is the hidden meaning

Have you ever heard "Code Adam" while shopping for groceries at Walmart? Or maybe you’ve heard how "Dr. Firestone" was being paged during a routine hospital visit. They sound like harmless announcements. But behind these ordinary words are secret codes staff use to signal emergencies without causing panic. From hospitals and supermarkets to airports and Disney Parks, these phrases quietly warn employees that something is happening. You hope you never hear them, but if you do, it helps to know exactly what they mean.

We all love getting special attention at airports or hotel desks, but if you hear the clerk call you a "treasured guest," don’t feel so flattered. You may not be as VIP as one could think.

In the hospitality industry, "treasured guest" has become a humorous bit of industry folklore to describe someone causing trouble. Maybe a customer yelling at staff over expired coupons, demanding impossible accommodations, or throwing a full-blown tantrum at the front desk. Whatever it is, the phrase has become the staff’s secret way to warn co-workers without escalating the situation in front of the customers. Most guests don’t realize the meaning, but once you know it, you may start hearing it more often. We just hope it’s not about you.

Imagine you’re pushing a shopping cart through Walmart when suddenly the overhead speaker announces, "Code Adam." You can easily assume it’s some kind of employee meeting or cleanup request. But when you see them start locking the exits and moving around, you know something’s wrong.

This code was created in 1994 by Walmart in collaboration with the National Center for Missing & Exploited Children (NCMEC), in memory of the tragic case of 6-year-old Adam Walsh. Adam was abducted from a Sears department store in 1981 while shopping with his mother. His father, John Walsh, later became famous for hosting the TV program America’s Most Wanted and advocating for missing children. Even if Adam’s story ended in tragedy, Walmart created the emergency system in Adam’s memory, and other retailers soon adopted it nationwide, intending to have a quick response to missing or abducted children.

You’re sitting in a hospital waiting room during a routine check-up when you suddenly hear "Code Blue, Room 214." Most people immediately know it sounds serious, even if they are not entirely sure why.

The phrase "Code Blue" is used at hospitals to draw the necessary staff and equipment to perform a resuscitation. It was created in the early 1960s at Beathany Medical Center by Dr. Hughes Day. Before then, hospital resuscitations were often chaotic and poorly coordinated. In 1961, Dr. Day received a grant to build one of America’s first cardiac care centers, and he developed both the Code Blue alert system and the modern crash cart to improve survival rates during cardiac emergencies. Today, the system is used in hospitals across the country, sometimes with specialized versions like "Code Blue Pediatric" or "Code Blue Neonate."

Imagine visiting a loved one in the hospital when the intercom calmly announces, "Paging Dr. Firectone to the third floor." Your head surely goes, "Dr. Firestone’s probably having a busy day up there." He is, but it’s not what you think.

The phrase is actually a discreet fire alert used to warn staff about smoke, flames, or overheating equipment without frightening patients and visitors. Hospitals adopted these coded announcements after realizing that openly yelling "fire" over loudspeakers could create panic, especially among patients who aren’t able to move quickly. "Code Red" is an alternative used by many health centers today, but it also hints at the situation while keeping hallways calm.

You’re standing at a checkout counter when the cashier picks up the phone and quietly says, "I need a Code 10 authorization." If you think that’s just another way to get a supervisor’s approval or technical issue, think again. In reality, the cashier may suspect the credit card is stolen or fraudulent.

Code 10 was developed through a cooperative effort between major credit card companies like Visa and Mastercard, along with international standard organizations. As credit cards became more common in the 1960s and 1970s, stores needed a discreet way to alert banks about suspicious activity without directly accusing customers and potentially putting employees at danger. When a cashier requests a Code 10, the bank’s operator begins asking yes-or-no questions to assess the situation and guide the employee on what to do next.

You’ve probably experienced those long airport security lines. The wait is usually uneventful. But sometimes, you can hear "Code Bravo" over the speakers. Maybe it’s a delay, or maybe it’s an issue with luggage. Within seconds, people stop moving, the security line freezes, and exits may even close. It’s something bigger.

Code Bravo is the emergency phrase used by airport security and the Transportation Security Administration to signal a serious security threat, such as an unattended bag, a breach at a checkpoint, or someone slipping into a restricted area. The term comes from the international phonetic alphabet used in aviation and military communications, where "Bravo" represents the letter B. When this is called, security staff immediately lock down affected areas, stop screening lines, and search for the source of the threat. To passengers, it’s sudden and confusing, but to security, it’s a carefully rehearsed response.

You are heading back to your cabin on a cruise ship when the speakers announce, "Code Alpha, Deck 7." You may think Alpha is related to the captain, but that’s not the case. It means someone on board is suffering a medical emergency.

The phrase comes from the NATO phonetic alphabet, where "Alpha" represents the letter A. In maritime emergency jargon, it became shorthand for a Priority A medical situation requiring immediate response. Cruise lines such as Royal Caribbean and Disney Cruise Line commonly use the term, though some ships use variations like repeating "Alpha" three times. Once the code is announced, onboard medical teams rush toward the specified deck or cabin. If necessary, stretcher crews are mobilized, and in severe cases, the ship may even divert course toward the nearest port for emergency evacuation. Passengers are enjoying the views, but the staff is running to save a life.

Anyone who remembers the CB radio craze of the 1970s probably smiles when they hear "10-4." Movies, truckers, and radio fans turned those number codes into a part of American culture. So if you overhear "10-33" on a police scanner, you might assume it’s just another routine message. But it’s not as simple as it sounds.

The 10-code system was first created in 1937 by Illinois State Police communications director Charles Hopper and later standardized by the Association of Public Safety Communications Officials, better known as APCO. Officers needed short phrases they could understand clearly over crackling radio signals. The 10-33 code commonly means an officer needs emergency assistance. In some departments, it also signals radio silence so dispatchers can focus on the crisis unfolding in real time.

Disney World is amazing, the parks offer something for everyone, and there are things to see wherever you look. But that’s exactly the kind of place where a child can easily disappear into a sea of strollers, balloons, characters, and crowds. For that reason, Disney has developed the "Signal 70," which alerts cast members and security that a child has become separated from their family.

The number comes from older police and emergency radio systems, where "70" was commonly associated with missing persons. Disney adopted the phrase because it allows employees to communicate discreetly without frightening or alarming nearby guests. If a member finds the child, they gently -and magically- escort them to Baby Care Center, where they coordinate the reunion.

Cruises are great to relax, enjoying a good book under the sun with a nice drink by the side. Until you hear "Echo, echo, echo" on the speakers. If you do, something is happening somewhere else on the ship.

The code is used among cruise employees to signal that dangerous winds or a navigational hazard are affecting the ship. It comes from the international maritime phonetic alphabet, where "Echo" stands for the letter E. In maritime signalling, the letter traditionally means "I am altering my course to starboard." And, in time, the phrase became associated with urgent ship maneuvers and weather-related warnings. However urgent, the repetition of the word by three doesn’t represent life-threatening situations. It alerts the crew of a certain hazard to prepare while avoiding panic among passengers.