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.

The truth about your brain

You won’t believe what happens in your brain while you sleep

Image: Milad Fakurian

Your brain is one of the most powerful and mysterious organs in your body. It controls everything from your thoughts to your emotions and even processes information at lightning speed. But how much do you really know about it? Some long-believed myths about the brain have been debunked, while other surprising facts reveal just how incredible this organ truly is. Get ready to be amazed by these fascinating brain facts!

Image: Natasha Connell

You’ve probably heard this one before, but it’s completely false! While it’s true that not all parts of the brain fire at the same time, imaging studies show that most regions are active throughout the day, even when we sleep.

Your brain is constantly working, controlling bodily functions and emotions, and processing information. So next time someone says you’re only using 10% of your brain, you can confidently tell them that’s just a myth!

Image: Aarón Blanco Tejedor

Here’s a weird fact: While your brain processes pain signals from the rest of your body, it has no pain receptors of its own. This is why surgeons can perform brain surgery on conscious patients without causing them pain.

However, the membranes and tissues surrounding the brain do have pain receptors, which is why headaches and brain injuries can be so excruciating.

Image: Usman Yousaf

How come we have headaches if the brain has no pain receptors? Well, that’s because headaches are triggered by chemical activity in the brain, changes in nerves and blood vessels, and even fluctuating serotonin levels.

In some cases, hormones like estrogen can also play a role, which explains why migraines are more common in women.

Image: Go to Johannes Plenio's profile Johannes Plenio

Dreams are proof that your brain never rests! (Warning: this fact can make you feel exhausted.) While you sleep, your limbic system, that is, the part of the brain that deals with emotions, becomes especially active, which is why dreams often feel so intense.

On average, humans experience four to seven dreams per night, even if we don’t always remember them. And what about that scary nightmare about falling? Well, you can thank your amygdala, the brain’s fear center, for that one.

Image: Brett Jordan

Have you ever walked into a room and instantly forgotten what you were after? That’s because short-term memory only lasts about 20-30 seconds! That’s not enough!

Your brain holds a limited amount of information in its active state before deciding whether to store it or discard it. Ironically, we can’t really choose what makes the cut, but we do hope these facts stay with you!

Image: BUDDHI Kumar SHRESTHA

That sharp, icy pain when you eat something too cold? It’s your brain’s way of telling you to slow down! Officially called sphenopalatine ganglioneuralgia, a brain freeze happens when cold food or drinks rapidly chill the blood vessels in your throat, causing them to constrict and then rapidly expand. This sends pain signals to your brain, warning you of the sudden temperature shift. It’s annoying, but it’s actually your body trying to protect itself!

Image: Josh Riemer

You didn’t need us to tell you, but let’s look at the details: The average person has between 12,000 and 60,000 thoughts per day. What’s even more interesting? 95% of those thoughts are the same ones you had yesterday. Is that not surprising enough? Hear this out: 80% of them tend to be negative. That’s because our brains are wired for survival, constantly analyzing risks and potential dangers.

Image: Terry Vlisidis

Even though it only makes up about 2% of your body weight, your brain employs a major quantity of energy! It consumes 20% of your oxygen and blood supply, making it one of the most demanding organs in your body.

If your brain goes without oxygen for just five minutes, brain cells start dying, leading to irreversible damage. This is why deep breathing and cardiovascular exercise are great for brain health!

Image: Alexander Andrews

Do you know that feeling when you hit the back of your head and see stars? That’s because your occipital lobe, which controls vision, is located at the back of your brain. If you get hit there, your brain momentarily misfires, causing flashes of light.

Interestingly, your brain processes vision on the opposite side; while your right brain controls your left eye, your left brain controls your right eye. It’s one of the many ways the brain operates in a complex way.

Image: Rodion Kutsaiev

Believe it or not, your brain generates between 12 and 25 watts of electricity when you’re awake. If you can’t really grasp how powerful that is, check this out: It’s enough to power a small light bulb! Your brain’s electrical activity is what allows neurons to send signals at speeds of up to 260 miles per hour.

Image: Robina Weermeijer

Your brain may be the fattiest organ in your body, consisting of at least 60% fat! This is why consuming healthy fats, like omega-3s and omega-6s present in fish, for example, is essential for brain health.

Healthy fats stabilize brain cell walls, reduce inflammation, and support cognitive function. So go ahead and enjoy that avocado toast, it’s food for your brain!

Image: Robina Weermeijer

It’s not just your memory that fades over time; the brain itself physically shrinks as one gets older. It continues developing until your late 40s, but after that, it slowly decreases in size.

Now, size doesn’t equal intelligence, so a smaller brain doesn’t necessarily mean a less capable one. Staying mentally active, exercising, and eating brain-boosting foods can help keep it in top shape!

Image: Lisa Yount

We often think of cholesterol as bad, but your brain actually depends on it! In fact, 25% of your body’s cholesterol is stored in your brain, where it helps with learning and memory. However, unlike other organs, the brain can’t absorb cholesterol from the blood, it has to produce its own. So, while too much cholesterol in the body can be harmful, the right amount is vital for brain function. At least you can use that as an excuse to get that burger!