When you glance at your smartphone, you might wonder just how much memory it hides. From a modest 64 GB iPhone to a massive 1‑TB model, storage has exploded, and the story gets wilder the farther back you look. In 1995 the average PC sported a paltry 12 MB of RAM and a half‑gigabyte hard drive. The ten mind‑blowing numbers below illustrate just how far computer memory and storage have vaulted, and they’ll make you see data in a whole new light.

10 The Human Mind May Be Able to Store Petabytes of Data

We often liken a computer’s RAM to the way our own brains retain information – that’s why the word “memory” works for both. While a hard drive is a compact slab of silicon, the brain is a convoluted organ packed with billions of neurons, each storing bits of experience, facts, melodies, and that one line from a movie you can’t stop quoting.

Scientists haven’t nailed down an exact figure for the brain’s storage capacity, because the organ doesn’t function like a binary drive. Still, the exercise of estimating it is entertaining, especially for computational neuroscientists who love to treat the mind as a giant data bank.

Early conjectures ranged wildly: some suggested a meager one terabyte, while others imagined a staggering 2.5 petabytes. To picture that, remember that one terabyte can hold roughly 250 full‑length movies; a petabyte is a thousand of those, and 2.5 petabytes would be enough for about 625 000 movies or 16.25 billion pages of text.

More recent work nudged the estimate toward roughly one petabyte – a figure that, at the time of the study, matched the total publicly available information on the internet in 2016. Whether you believe the brain can truly hold that much, the comparison certainly puts our personal data stores into perspective.

9 You’d Need Unbelievable Space to Store a Yottabyte

A petabyte already sounds colossal – imagine the entire internet compressed into a single storage unit. Yet the metric system marches on, and the next giant after petabytes is the yottabyte. After petabytes come exabytes, then zettabytes, and finally yottabytes, the largest officially recognized unit, equal to one quadrillion gigabytes.

If a yottabyte of data existed today, it would need a massive physical footprint. Rough calculations suggest that the collection of hard drives required to house a yottabyte would stretch across the combined area of Delaware and Rhode Island, demanding roughly a million data centers to accommodate the sheer volume.

While we’re nowhere near that scale yet, the concept underscores just how quickly our storage needs are outpacing the units we once thought were “big enough.”

8 278,000 Petabytes of Traffic Flowed Through the Internet Per Month in 2021

Every time you stream a video, scroll a feed, or send an email, you’re contributing to a massive data river. In 2021, the worldwide internet moved an eye‑watering 278,108 petabytes of information each month – a leap from the 96,054 petabytes recorded in 2016.

Projections for 2023 suggested the flow would surpass 150.7 exabytes per month (about 150,700 petabytes), highlighting the relentless growth of digital communication and the ever‑increasing demand for bandwidth.

7 It Would Take 500,000 Terabytes of Data to Map a Mouse’s Brain

Mapping a brain isn’t just about counting neurons; it’s about capturing every synapse and connection. While a full human brain map is still beyond our reach, researchers have turned to mice as a more manageable model.

Scientists estimate that a complete mouse brain would generate about 500,000 terabytes of raw data. They’ve already begun with a tiny 10‑square‑millimeter slice, which alone is expected to require roughly 10,000 terabytes. Scaling up to the whole organ balloons the demand dramatically.

For context, mapping a human brain is projected to need an astronomical 1.3 billion terabytes, underscoring the massive computational challenges that lie ahead for neuroscience.

6 In 1980, a 1 GB Hard Drive Weighed Over 500 Pounds

Technology’s miniaturization journey is nothing short of astonishing. In the early 1980s, IBM introduced a hard drive that could store a single gigabyte of data – a capacity that today fits comfortably on a key‑chain flash drive.

That pioneering drive cost a staggering $40,000, weighed about 550 pounds, and occupied the space of a typical refrigerator. By contrast, you can now buy fifty 1 GB flash drives for just over $75, delivering the same storage in a pocket‑sized form factor.

The price‑to‑weight ratio alone is mind‑blowing: for the cost of that 1980 behemoth, you could purchase over 26,600 of today’s tiny drives, illustrating how far we’ve come in squeezing storage into ever‑smaller packages.

5 Data on Star Trek Has Less Storage Capacity Than Modern Supercomputers

Fiction often predicts the future, and “Star Trek” gave us Commander Data – a sentient android with a massive memory bank. The series disclosed that Data possessed roughly 800 quadrillion bits of storage, which translates to about 100 petabytes (or 100,000 terabytes).

Back when the episode aired in 1989, that figure seemed otherworldly. Fast forward to today, and the Aurora supercomputer already boasts around 220 petabytes of capacity, comfortably eclipsing Data’s fictional hardware – albeit without true consciousness.

The comparison highlights how quickly what was once sci‑fi fantasy becomes mundane reality in the high‑performance computing world.

4 The Fastest Internet Ever Recorded Was More Than 7 Million Times Faster Than Average

Speed matters as much as capacity. In the United States, the average broadband download hovers around 219 Mbps with an upload of 24 Mbps – respectable, but far from blistering.

In 2021, Japanese researchers shattered expectations by achieving a jaw‑dropping 319 terabits per second using a four‑core optical cable. That speed is over seven million times faster than the typical U.S. household connection.

At that rate, you could theoretically download about 80,000 full‑length movies in a single second, turning the concept of “buffering” into a nostalgic relic.

3 Frontier Is the Most Powerful Computer Ever Built

Frontier, currently perched at Oak Ridge National Laboratory, earned the title of the world’s first exascale supercomputer, capable of performing more than one quintillion (10^18) calculations each second. Weighing nearly 270 tons, housing over 40,000 processors, and gulping power equivalent to 15,000 average homes, Frontier represents the pinnacle of raw computational might.

2 Synthetic DNA Could Have 215 Petabytes of Storage Per Gram

When it comes to packing data into minuscule volumes, nature offers a dazzling blueprint: DNA. Researchers have theorized that synthetic DNA could store up to 215 petabytes of information in just a single gram of material – a density far beyond any silicon‑based medium.

The catch? Writing and reading data from DNA is painstakingly slow, often taking hours, and the cost remains astronomical. MIT estimates that storing a single petabyte in DNA could set you back roughly $1 trillion, making the technology more of a futuristic curiosity than a practical solution for now.

1 Everything Ever Spoken Would Fill 5 Exabytes

Trying to quantify humanity’s collective speech is a wild thought experiment. If we recorded every utterance from every person who ever lived – roughly 117 billion individuals – the total would amount to about 5 exabytes of data.

Researchers estimate that the average person speaks around 860.3 million words over a lifetime. Multiplying that by the total number of humans gives a staggering figure that dwarfs even the most massive data centers we have today.

When it comes to the top 10 superstitious numbers that pepper cultures worldwide, 3, 7 and 13 immediately jump to mind. Bad luck is said to arrive in threes, even death, while 7 is hailed as a prime bearer of good fortune. In 2016, the world collectively held its breath as actor Alan Thicke passed away on December 13, a date that seemed to echo the ominous reputation of the number.

Top 10 Superstitious Numbers Explored

10 Knock on Wood with a Twist

The age‑old practice of “knocking on wood” – or “touching wood” – is a global habit meant to stave off misfortune and invite good vibes. By giving a wooden surface a light tap, people believe they can keep bad luck at bay and pull fortune toward themselves.

In Iceland, the custom is so ingrained that you’ll hear knuckles clacking against doors everywhere, without a second thought. Locals often chant “sjö níu þrettán,” which translates to “seven nine thirteen,” while they perform the ritual.

Here, the number seven carries magical weight because it can be formed by adding three and four, symbols of the spirit and material realms respectively. The number nine emerges from multiplying three by three, echoing the Holy Trinity, while thirteen harks back to an extra month in the ancient Roman calendar that was deemed unlucky.

Reciting “seven nine thirteen” is believed to balance the good and the bad, acting as a charm that both wards off ill fate and summons positive energy.

9 Tuesday the 13th

Move over, Friday the 13th – in Spain, the real troublemaker is Tuesday the 13th. When the 13th lands on a Tuesday, the superstitious tend to stay indoors, fearing that misfortune may be lurking around every corner.

The day inherits its bad‑luck aura from Mars, the Roman god of war, whose name gave rise to “Martes,” the Spanish word for Tuesday. Historically, the fall of Constantinople on Tuesday, April 13, 1204, cemented the day’s ominous reputation.

Legend also ties Tuesday the 13th to the biblical “Confusion of Tongues” that erupted after the Tower of Babel was built, and the 13th chapter of Revelation, which foretells the Antichrist’s arrival, further deepening its dark connotations.

Because of this lingering dread, a popular saying emerged: “Don’t marry, go on a boat, or leave your house on a Tuesday.”

8 The Number of Good Fortune and Wealth

Back in 2016, a Sydney office tower changed hands for the eye‑catching sum of A$88,888,888. While the figure sounds almost whimsical, it dramatically accelerated the sale because the number eight is a powerhouse of luck in Chinese culture.

The digit eight appears everywhere in Chinese real‑estate: from street numbers to floor levels. Buyers often request that an eight feature in the price tag, hoping it will usher in prosperity.

Many apartment hunters even aim for the eighth floor or a unit whose address includes an eight, believing those numbers will bring them financial success.

Beyond property, the number eight permeates major events – the 2008 Beijing Olympics kicked off at 8 minutes and 8 seconds past 8 pm on 8/8/08, and the Petronas Twin Towers each boast 88 floors. Even phone numbers, like +86 28 8888 8888, have been sold for hefty sums because of the digit’s auspicious reputation.

7 On the Flip Side

While eight brings fortune, the number four is shunned across many Asian societies because its pronunciation closely resembles the word for “death.” This linguistic coincidence has birthed a widespread aversion known as tetraphobia.

Companies and developers go to great lengths to dodge the digit: Alfa Romeo rebranded its 144 model for the Singapore market, Nokia stopped releasing phones beginning with a four, and Beijing halted production of license plates containing the number.

Even architecture feels the impact – many hospitals and high‑rise buildings skip the fourth floor entirely. In Japan, the combination 49 (four‑nine) is especially unlucky, echoing a phrase that translates to “pain until death.”

6 The Number of the Beast

The figure 666 has long been linked to the “number of the beast” from the Book of Revelation, cementing its reputation as a symbol of the devil and spawning the phobia known as hexakosioihexekontahexaphobia.

In the United States, many believe the number has been covertly embedded in banking, Social Security, medical records, and even UPC barcodes, prompting some to avoid living in homes numbered 666 or to wait until their car’s odometer jumps past the dreaded triple‑six.

Highway 666 earned the nickname “Devil’s Highway” after a series of accidents that locals attributed to the route’s ominous number. Even former President Ronald Reagan and his wife, Nancy, altered their Bel‑Air address from 666 to 668 after moving in.

Nevertheless, 666 isn’t universally unlucky. On Friday, October 13 2017, Flight 666 departed Copenhagen at 13:00 and landed safely in Helsinki, proving that the number can sometimes fly under the radar of misfortune.

5 It’s All in the Numbers

Russia boasts a rich tapestry of number‑based superstitions. For instance, shaking hands over a threshold on a Friday the 13th is thought to offend the house spirit, Domovoi, especially on that infamous date.

Another quirky custom involves spitting three times over the left shoulder after complimenting someone’s looks or a newborn’s health, a gesture believed to ward off envy.

Some Russians even eat their bus tickets when the sum of the three left‑most numbers matches the sum of the three right‑most numbers, treating the act as a charm for good luck.

Additional taboos include delaying a newborn’s public debut for at least 40 days and avoiding even‑numbered flower bouquets, as even numbers are traditionally reserved for funerals.

4 Superstition in the Land of Magic

Four‑leaf clovers have long been a staple of Irish folklore, symbolizing protection against evil and the ability to glimpse fairies. The rarity of the leaf makes it a potent talisman for good luck.

Beyond clovers, Ireland has a famous magpie rhyme: “One for sorrow, two for joy, three for a girl and four for a boy, five for silver, six for gold, seven for a secret never to be told.” The number of magpies seen dictates the appropriate gesture – a quick salute when the count is unfavorable.

If a lone magpie appears, a respectful wave is said to break any looming curse, ensuring the observer stays on the right side of fate.

Finally, should a funeral procession pass you, resist the urge to count the vehicles; doing so is believed to reveal exactly how many years you have left to live.

3 Friday the 17th

In Italy, the unlucky day isn’t Friday the 13th but rather Friday the 17th, dubbed a “black day.” The number 17 is considered inauspicious, while 13 is oddly viewed as a lucky charm.

The superstition may stem from the belief that the Great Flood began on the 17th day of the second month. Coupled with the crucifixion of Jesus on a Friday, the date has acquired a double dose of bad‑luck reputation.

Italians often carry talismans such as red horn pendants, horseshoes, or even a picture of a hunchbacked figure on this day, and they warn skeptics: “Not on Friday, nor on Tuesday does one marry, depart, or start anything.”

2 Unlucky for Some

New Zealanders harbor some of the world’s most distinctive superstitions, especially when it comes to new homes. A traditional house‑warming involves walking through every room with a loaf of bread and salt, while guests are expected to bring salt and coal to ward off fire hazards.

Historically, a virgin’s shirt would be sealed in a jar and buried in the garden to prevent house fires – a practice now rare due to the scarcity of virgins.

Data from 2016 revealed that properties bearing the number 13 often sold for less. In Mission Bay, Auckland, homes numbered 13 fetched $390,000 less than comparable houses, while in Orakei the shortfall was $350,000.

Interestingly, some neighborhoods like Glendowie and Northcote saw the opposite effect, with 13‑numbered homes commanding higher prices than the local median, suggesting the number’s luck varies by locale.

1 What’s Up with the Number 23?

Ever stumbled upon a Facebook group called the 23rdians? Members post photos of the number 23 popping up in everyday life, turning a simple digit into an obsession.

The fascination allegedly began with writer William Burroughs, who claimed to have met a sea captain whose vessel sank the very day Burroughs bragged about a 23‑year streak without maritime accidents. Later that night, a news report mentioned a Flight 23 crash in Florida, piloted by a man named Clark – the same name as the sea captain – cementing the number’s eerie reputation.

Since then, the number 23 has been linked to numerous tragedies: the Twin Towers fell on 9/11/2001 (9 + 11 + 2 + 0 + 0 + 1 = 23), Julius Caesar was stabbed 23 times, and musician Kurt Cobain’s birth year (1967) and death year (1994) each sum to 23 (1 + 9 + 6 + 7 = 23; 1 + 9 + 9 + 4 = 23).

At a certain point numbers begin to lose meaning. The human mind isn’t good with large numbers and the vastness of large numbers and what they represent becomes too diffuse and too vague for us to conceptualize. That’s part of the reason why guessing how many jellybeans are in a jar is such a reliable game. People will vastly miscalculate large numbers. But the sheer number of all sorts of things, and not just jellybeans, are around us all the time. And many things exist in some surprising numbers. 

10. Beetles Make Up About a Quarter of All Identified Life on Earth

In 2011, scientists estimated there were about 8.7 million different species living on Earth. Of those, around 1.5 million species have been identified and given a name. And of those, beetles make up 25%. That means, of 1.5 million species, around 350,000 to 400,000 of them are just beetles. 

From an evolutionary standpoint, this makes sense. Most beetle species have been around since the Jurassic period, meaning they’ve achieved success in part because they are very adaptable and well suited to live in all kinds of conditions as they are. They hit the evolution jackpot, so to speak.

9. There Are Over 120,000 Kinds of Rice

You could make a strong case that rice is the most popular food in the world. In 2021/2022, 520 million metric tons of rice were consumed worldwide. Americans eat about 20 lbs of rice per person every year. If that seems like a lot, compare it to Asia where the average person eats 220 lbs per year. So a lot of rice is being eaten, that’s a given. But the sheer variety of rice is even more remarkable.

Most of us know things like arborio rice, jasmine rice, basmati rice and a few others. There are, however, over 120,000 kinds of rice in the world. The International Rice Genebank holds genetic material from 132,000 different kinds of rice and related genera.That means you could eat a new kind of rice every single day for over 360 years. If you wanted to fit it all into your lifetime, you’d probably need to try about 6 different kinds a day, then you’d only have to spend 60 years on the job. 

8. Sign Language Is Not Universal, There are Hundreds of Variations

Communication is a cornerstone of civilization and there are over 7,000 spoken languages in the world.  That means, sometimes, communication can be difficult if we’re not all on the same page. 

Some people may think that this is less of an issue for those who have hearing loss as sign language can bridge that international language gap by allowing people from any culture to communicate but that’s not the case. While not as diverse as spoken languages, there are still over 300 kinds of sign language used in the world. 

Interestingly enough, the differences in sign language don’t follow the lines of spoken language. American Sign Language is different from Auslan sign language in Australia and British Sign Language in the UK, even though verbal communication is mostly all done with the same language in those three places.

7. There Are Over 1,800 Kinds of Cheese

If you’re a cheese fan you probably already know and enjoy an abundance of varieties. Most grocery stores will offer up a few dozen cheese varieties from cheddar to emmental to gouda and havarti and more. But even cheese speciality shops that have hundreds of varieties available still fall short of showing the whole picture. Around the world you can find over 1,800 varieties.

You can search through databases of them based on country of origin, the milk used to make them or even the texture of the finished product. 

6. Apples Come in About 7,500 Varieties

Google “best apples for making pie” and you’ll find plenty of articles offering up dozens of different options. It’s probably been an ongoing debate since apple pie was invented. There are plenty of options which people choose for reasons ranging from sweetness to tartness to firmness and more. But throughout all of those articles, you’ll probably just find a few dozen different apples at most. And that’s kind of odd considering there are actually 7,500 different kinds of apples to choose from.

Of course most of us only know a couple dozen at most which is why the range is so limited, even though 2,500 of those numerous apples are grown in the US alone. It’s just that consumers are accustomed to a limited variety and introducing new ones tends to take time and some marketing before people get on board. Also, while there are a huge variety of apples grown in America, many are grown only in limited areas or small farms so the whole supply for a second may be extremely limited. Without larger farms giving space to new crops, most people will probably never get to try them.

5. There Are Over 30 Types of Screw Drivers 

Have you ever been working on a project with someone and they ask you for a screwdriver? And then you have to go through what type of screwdriver they mean? A few of them are fairly well known like Phillips, slot or Robertson. But what do you call a six-pointed star? That’s a Torx of some kind, though there are sub-varieties. And ones that look like an hourglass? That’s a clutch. 

There are over 30 types of screws and drives that are in popular usage, though obviously some are more popular than others. Wikipedia has a page that aggregates most of them if you ever come across something and don’t know what you’re looking at. 

Why so many kinds? Some are proprietary. Some, like Torx, prevent cam out. Tri-wing let you apply more force. Phillips itself was designed to be better managed with screwdrivers than previous types. 

4. There Are Over 350 Pasta Shapes

Americans eat nearly 6 billion pounds of pasta per year. Safe to say it’s a popular food item. And one of the most fun things about pasta is that you can change the shape and change the dish even though, technically, the ingredients are the same. Certain pasta shapes are better suited to certain toppings, sauces or preparations. Some are just kind of fun to eat. 

Spaghetti and macaroni are two hugely popular varieties and there’s penne, rigatoni, fettuccine and so many others. How many exactly? Over 350. You can find a lot of them in online databases but they are still not fully exhaustive. Even the Wikipedia page for pasta only covered so many, though it has more than most. 

Part of the problem is that many pasta shapes are variations of pre-existing ones, the way spaghettini is just a thinner version of spaghetti,for instance. And other types get different names from region to region so keeping track of everything can become difficult. Not to mention novelty pasta shapes, like the kind you might find in cans of Scooby Doo pasta at the grocery store. 

3. There are 15 Kinds of Electrical Outlets Around the World

One thing people will always tell you if you’re going to travel internationally is to buy an adapter for your electronics because plugs in Europe or Asia or wherever you’re going are different. And the way it’s explained makes it sound like there are two kinds of plus in the world and that’s it. But there are actually about 15 types of electrical outlets in common usage in the world, depending not just on where you are but what the outlets are for.

In America alone there are multiple types even if we don’t always think of it. There’s Type A which features your standard two prongs but also Type B with a third prong for the ground wire. Both are 120V, typically. You’ll also find larger 3 and 4-pronged outlets for appliances like clothes dryers.

When you go international, you get into Type C, which is not grounded and found in Europe, Asia and South America and is up to 240V. Type D is from India, while H is in Israel and Type L is found in Italy and Chile. 

2. There Are 19 Kinds of Ice

If someone asked you what kind of ice you like, chances are you’d consider the difference between cubed and chipped. But in science there are 19 recognized kinds of ice. The 19th kind was created in a lab back in 2021. These are 4-sided crystals and require super low temperatures and very high pressure. 

The various other kinds of ice all exist in conditions you won’t find outside on a winter’s day. They can be made in labs or found out in space on other worlds under extreme conditions. They require extreme temperatures and pressures and form different crystalline structures that differentiate them from the ice we know here on earth. Ice 17, for instance, can be made at room temperature by squeezing water between 1 nanometer layers of graphene with pressures at about 10,000 atmospheres.

1. There Are Multiple Types of Twins

Most people likely either know twins or have at least come across twins at some point in their life. There are fraternal twins and identical twins and many parents like to make a big deal about dressing them alike or giving them similar names when they have the opportunity, at least when it comes to identicals. 

Fraternal twins are also known as dizygotic twins. This occurs when two eggs are released and fertilized at the same time, so two babies grow together in the mother’s womb. Identical twins are monozygotic twins. That happens when one fertilized egg splits in two and essentially the same person from a genetic standpoint grows twice in the womb.

Those two types of twins are not the only ones, however, and it’s been proposed that there are a number of other twins that can occur.

Mirror image twins occur when the egg splits late, more than a week after conception occurs. The twins will develop as mirror images so that instead of being 100% identical, they are identical but opposite. So a mole on one twin’s left cheek would be on the other’s right.

Semi-identical twins, so rare that only two cases have been identified in the past, occur when a single egg is fertilized by two sperm. Technically, it’s supposed to be impossible. But it’s not. After fertilization, the egg splits the three sets of genetic material into two subsets and each develops separately. The result in one case was twins, a boy and a girl, developing as identical twins should have, but sharing only 84% genetic material. 

Superfetation is another condition where something technically impossible still happens. In this case, the woman gets pregnant and then gets pregnant again. Your body is supposed to prevent this from happening naturally, but in some cases where assistive technology has been used to increase chances of becoming pregnant, the body’s natural defense against this was bypassed and a double pregnancy occurred. The children are technically not twins but the pregnancy works much the same for obvious reasons. 

Superfecundation occurs when twins are born to two different fathers. It’s more common in animals but can happen in humans if a woman releases two eggs in a short amount of time and has sex with two different men to fertilize both in the same cycle. This can result in twins who look significantly different.

There are other potential twin types that have been proposed beyond these as well.