Monthly Archives: October 2026

The Higgs Boson: The Particle That Gave the Universe Some Weight, or: How I Learned to Stop Panicking About the Standard Model

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Today, my friends, following on from last week’s article, I am going to introduce to you, the most important particle you have never seen.

Now then, picture this. It’s the early 1960s, and physicists are feeling pretty good about themselves. They’re piecing together the ultimate instruction manual for the universe, a theory that would eventually become known as the Standard Model of Particle Physics.

There was, however, one teeny tiny problem. The maths insisted that many fundamental particles should have no mass whatsoever, and reality was very much in disagreement.

Electrons have mass. Quarks have mass. The particles responsible for nuclear reactions have mass. In fact, pretty much everything around you has mass, so, where does that mass come from?

The answer to that, as it turns out, lies in an invisible cosmic field that fills every corner of the universe, and a tiny particle called the Higgs boson.

Imagine the entire universe submerged in an invisible substance. Not a liquid, not a gas, but a field of invisible cosmic treacle, which physicists call the Higgs field. I’ve bolded that as it very much deserves it.

The field is absolutely everywhere. In your room, inside your body, between galaxies, and (slight pause for dramatic effect) in the emptiness of deep space.

You can never step outside it because it fills the entire cosmos, and some particles move through this field almost effortlessly, while others interact strongly with it and effectively become heavier. The greater the interaction, the greater the mass. And just like that, one of nature’s biggest mysteries begins to make sense.

Touching back on my last article, there is an analogy the physicists love because it captures the basic idea so perfectly. And that is the celebrity party analogy.

Imagine you’re in a crowded room and an ordinary, average Joe, enters. Nobody notices them. They walk straight across the room with ease, no interruptions, no one stopping them to chat, a bit sad really, I guess. Now imagine a famous movie star walks in and people start gathering around them, wanting selfies, autographs and conversation. Suddenly, for that one individual, moving across the room becomes that much harder.

In this analogy, the crowd is the Higgs field, the celebrity is a particle with lots of mass, and the unnoticed person is a light particle. The more interaction there is with the crowd, the more “massive” the particle appears. Although it isn’t a perfect comparison, it is a great way to visualise a very strange piece of physics.

If you were to travel back nearly 14 billion years, before mass existed, to immediately after the Big Bang, the universe was warm, it was very warm, in fact, it  was unimaginably hot. So unimaginably hot that the Higgs field behaved very differently.

Particles zipped around at light speed. Mass as we know it didn’t really exist. Then the universe cooled and a cosmic phase change occurred.

The Higgs field “switched on” and settled into the state we observe today as suddenly  particles gained mass, and the universe changed forever.

If it hadn’t been for that moment atoms would never have formed, chemistry would never have happened. Stars would never have ignited, planets would have never existed, and life, itself, would have been impossible. And in many ways, this was the moment the universe became recognisable.

So, that leads us to a question. Just what exactly is the Higgs Boson? And the answer to that question, dear readers, is when things start to really get interesting, as the Higgs boson is not the field itself. It’s more like a ripple in the field.

Analogy time again! Think of a pond. The water is the field and the ripple is the particle. The Higgs boson is simply evidence that the Higgs field exists. Physicists had spent decades looking for that ripple because finding it would prove the field was real.

No Higgs boson? No Higgs field.

No Higgs field? Back to the drawing board, I’m afraid.

Finding the Higgs boson became the ultimate scientific treasure hunt, as it wasn’t easy. In fact, it became one of the most difficult experiments ever attempted, as the particle is extremely rare, very heavy, incredibly unstable, and most annoyingly, it’s gone almost instantly after it’s created. To find it, scientists needed a machine capable of recreating conditions that existed fractions of a second after the Big Bang.

This is when the Large Hadron Collider entered the scene. Buried beneath the French-Swiss border near Geneva is the largest machine humanity has ever built. The LHC is a gigantic 27-kilometre ring that accelerates protons to almost the speed of light.

Scientists smash these particles together billions of times every second, and where most collisions create nothing unusual, every now and then a Higgs boson briefly appears, and then vanishes almost immediately. The challenge is spotting the clues it leaves behind. A bit like reconstructing a firework after seeing only the sparks.

On 4 July 2012, physics changed for ever, as  scientists around the world held their breath, researchers at CERN announced that they had discovered a new particle, and two independent experiments, ATLAS and CMS had detected exactly the sort of particle predicted nearly fifty years earlier. The missing piece of the Standard Model had finally been found.

Many physicists were emotional. Some cried, while others sat in stunned silence. One scientist in the room that day had spent almost his entire career waiting for that announcement, and his name was Peter Higgs.

The theory behind the Higgs mechanism had been proposed way back in 1964, and at the time it was nothing more than an elegant mathematical solution. For almost half a century there was no direct evidence that it was correct.

Then the LHC confirmed it.

In 2013, the Nobel Prize in Physics was awarded to Peter Higgs and Francois Englert, for helping develop the theory that eventually led to the discovery. It’s one of those extremely rare occasions in science where an idea survived decades of scrutiny and turned out to be almost exactly right.

You’ve probably heard the Higgs boson referred to as The God Particle. A nickname that practically all physicists hate. Although it sounds mysterious and spiritual, the reality behind the nickname is much more amusing. Physicist Leon Lederman reportedly wanted to call it The Goddamn Particle because it was proving so difficult to find. Publishers thought that title might be a little too spicy for bookstores and so they shortened it, and in an instant a nickname was born, which, unfortunately, stuck!

One of the biggest surprises was that the Higgs doesn’t give everything mass. The Higgs field gives mass to fundamental particles such as electrons, quarks, W bosons, and Z bosons, however, most of the mass inside your body actually comes from somewhere else.

Take a proton for example, the quarks inside it only contribute a small fraction of its total mass. The majority comes from the immense energy of the strong nuclear force binding those quarks together.

And in a strange twist, Einstein’s famous equation, E = mc², means energy itself contributes mass. So while the Higgs is essential, it isn’t responsible for all the weight in the universe.

This raises another obvious question. Could the Higgs explain dark matter? This question takes into the realm of modern mysteries. Scientists know that ordinary matter accounts for only a small percentage of the universe. The rest appears to be dark matter and dark energy (article on this coming soon).

The thing is, nobody really knows what dark matter is. Some theories suggest the Higgs field could act as a bridge between ordinary particles and an unseen hidden world, and if that’s true, the Higgs boson may eventually help reveal one of the biggest secrets in cosmology.

Are you ready for something truly weird? There’s a slightly terrifying instance to the Higgs theory.

Current measurements hint that our universe may not occupy the absolute lowest-energy state possible, something physicists call the metastable vacuum.

Analogy time! Think of a ball sitting in a small valley when an even deeper valley exists somewhere else. It may be stable for now, but theoretically it could drop to a lower state, and if that were ever to happen, a bubble of new physics would spread across the universe at light speed, rewriting the laws of nature as it went.

The good news?

Calculations suggest this is so unlikely that the universe will probably survive vastly longer than the lifetime of all the stars combined. So, I really wouldn’t lose any sleep over it, although I think I may pin that as the premise for a future novel.

And there’s another question. Is there more than one Higgs? And the answer to that question is…

Possibly.

The particle discovered in 2012 may be only the beginning as some theories predict multiple Higgs bosons, charged Higgs particles, and even entire families of Higgs-like particles.

Finding even one extra Higgs particle would be a scientific earthquake as it would instantly prove that the Standard Model is incomplete, and there are many physicists who believe that that is exactly what future experiments may reveal.

Even after one of the greatest discoveries ever made, huge mysteries still remain that keep a great many physicists awake (over enthusiastic amateurs too).

Why is the Higgs boson’s mass about 125 GeV? Why is the top quark enormously heavier than the electron? Is the Higgs truly fundamental? Is it connected to dark matter? And the answer to these questions is…

Nobody knows.

There is another question, could the Higgs reveal entirely new laws of physics? And the answer to that one is…

Possibly.

The discovery of the Higgs may have solved one problem but opened many more.

So, why does the Higgs boson matter?

The Higgs boson isn’t just another particle. It’s proof that empty space isn’t empty. It revealed that the vacuum of space possesses hidden structure that shapes reality itself. The stars overhead, the atoms in your body and the world around you all depend on an invisible field that quietly fills the universe.

That’s why the discovery of the Higgs boson ranks alongside the greatest scientific achievements of all time, as it showed us that the fabric of reality is stranger, richer and more beautiful than anyone imagined.

And perhaps most remarkably of all, it revealed that everything you have ever touched owes its existence to an invisible field that stretches endlessly across the cosmos, silently giving substance to the universe itself.

And that, is another reason of many that I love physics so much.

The Large Hadron Collider – A Machine for Asking the Universe Embarrassing Questions

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Quite often on my socials, I see a T-Shirt designed by the ever-so awesome, Jim’ll Paint It, which says on it “Large Hadron Collider. What does it do? No one knows -> WTF? I once saw it in the wild on a night out with mates, and very drunkenly tried to explain it to the wearer who wasn’t in the slightest bit interested in anything a drunk physics nerd had to say. I do that a lot, try and explain things to people after I’ve had a couple of beers, when they don’t actually care and wish the boring person excitedly gesticulating before them would please shut up so they could get on with their night out. Which is one of the reasons I started writing about this stuff here.

Anyway, enough of my reminiscing on great nights out with friends. You don’t want to hear any of that, you’re here to hear all about the LHC.

Somewhere beneath the gentle vineyards and villages that straddle the French-Swiss border, a stream of protons is being whipped around a 27-kilometre underground ring at a whopping 99.9999991% the speed of light. The machine doing this is so cold that parts of it are colder than outer space. It consumes enough electricity to power a small city. It contains magnets so powerful they could tear everyday metal objects across a room. And the entire purpose of this absurdly expensive, ridiculously complicated contraption is to smash tiny particles together and stare very carefully at the wreckage.

Although this sounds less like science and more like the opening chapter of a hard science-fiction novel. It is, in fact, very real. And it is something you have all heard of.

The Large Hadron Collider, or LHC, is arguably the most ambitious scientific instrument humanity has ever built. It is our attempt to reverse-engineer reality itself. If the Universe is a giant cosmic puzzle, the LHC is the world’s most expensive method of throwing the pieces into the air and watching where they land.

In 2012, it succeeded in finding the Higgs boson, the last missing piece of the Standard Model of particle physics. Today it continues searching for dark matter, probing conditions that existed fractions of a second after the Big Bang, and hunting signs that our current understanding of nature is incomplete.

Which, if we’re being honest, once it’s sussed those out, would be the most exciting outcome of all.

But what actually is the LHC? At its simplest, the Large Hadron Collider is a gigantic circular particle accelerator operated by CERN, the European particle physics laboratory. The ring is buried roughly 100 metres underground and stretches for 27 (just over 16.5 miles) kilometres, crossing back and forth underneath France and Switzerland.

But calling it an accelerator is only half the story, as the clue to its true purpose is in the name. It’s a collider.

Many particle accelerators simply speed particles up and fire them at a target. The LHC does something far more dramatic. It accelerates two separate beams of protons in opposite directions around the ring and then deliberately smashes them into each other.

This turns out to be much more efficient. If one moving proton hits a stationary target, much of the energy goes into pushing the target backwards. But if two equally energetic beams collide head-on, almost all of the energy is available to create new particles.

It’s the particle-physics equivalent of two Formula One cars driving into each other at full speed rather than one car hitting a parked vehicle.

Keeping these proton beams under control is astonishingly difficult. Protons naturally want to continue in a straight line, so the LHC uses more than a thousand enormous superconducting magnets to bend them around the circular tunnel.

These magnets are kept very, very cold, and are cooled to about 1.9 Kelvin, which is roughly a very chilly -271°C. And that, folks, is colder than the average temperature of deep space.

The reason for this is simple but weird. Electricity flowing through ordinary wires encounters resistance, producing heat and wasting energy. At extremely low temperatures certain materials become superconductors, allowing electricity to flow without resistance. The LHC’s magnets need immense electric currents to generate the magnetic fields required to steer particles that are moving at nearly light-speed. Without superconductivity, the whole endeavour would be impractical.

OK, I hear you, you get that, but why is the machine so huge?

And that is because making particles faster isn’t simply a matter of pressing a bigger accelerator pedal. The faster a particle goes, the harder it becomes to bend its path. To keep ultra-relativistic protons moving in a circle, you either need stronger magnets or a larger ring, and the LHC uses both.

Let’s take a step by step breakdown and see how it actually works, and  the journey itself begins with something surprisingly ordinary: Hydrogen.

A hydrogen atom consists of one proton orbited by one electron. Scientists strip away the electron, leaving behind a lone proton ready for acceleration, before setting it off on its grand tour of CERN.

First, it enters a linear accelerator before then passing  through a series of progressively larger booster rings. Each stage adds more energy, like pushing a swing higher and higher, until, eventually the proton beam arrives in the LHC itself. Which is where the real fun starts.

The beams circle the ring over 11,000 times per second, accelerating to 99.9999991% of light speed. At these velocities Einstein’s relativity becomes unavoidable. The proton’s speed can barely increase further, so additional energy instead increases its momentum enormously.

The two beams race around in opposite directions until they meet at four major collision points, where  there are some of the most sophisticated scientific instruments ever built waiting for them.

These are ATLAS, CMS, ALICE, and LHCb.

ATLAS and CMS are the giant all-purpose detectors responsible for the Higgs discovery. ALICE specialises in studying quark-gluon plasma. LHCb focuses on subtle differences between matter and antimatter.

When the beams cross, protons collide, which is where many popular descriptions get the story slightly wrong as the point isn’t really to smash particles apart to see what’s inside them. The real goal is to convert energy into entirely new particles.

Einstein’s famous equation, E = mc², tells us that mass and energy are different forms of the same thing. Sufficient collision energy can literally become matter, and as the protons collide, for a fleeting instant, particles that haven’t existed naturally since the early Universe can pop into existence. Most of them survive for merely tiny fractions of a second before decaying into other particles, and the detectors capture these decay products.

Imagine investigators arriving after a firework factory explosion. They never saw the explosion itself. They only have scattered debris, burn marks, smoke patterns and fragments. From that evidence they reconstruct what happened, which is essentially what ATLAS and CMS do, but they do it millions of times every second.

And here’s a neat callback to the quantum measurement problem.

Before detection, quantum mechanics often describes multiple possible outcomes existing in superposition. Once the detector records an actual event, one specific outcome becomes reality’s official entry in the ledger. Every collision is therefore an example of a quantum process producing a definite measurable result. The detectors don’t merely observe the aftermath. They convert quantum possibilities into cold, hard, recorded facts.

No article on CERN or the LHC would be complete without mentioning the big one. The Higgs Boson. If particle physics has a celebrity, the Higgs boson is the most famous by a country mile.

To understand why though, we need to talk about the Higgs field.

According to modern physics, fields exist throughout the Universe. The electromagnetic field exists everywhere. So do the fields associated with electrons and quarks. The Higgs field is another such field. It fills all of space.

Particles moving through it interact with it to differing degrees. Some interact strongly and acquire large masses. Others interact weakly and remain relatively light. An imperfect but useful analogy would be to imagine walking through a crowded room.

A celebrity trying to cross the room gets constantly surrounded and slowed by admirers, whereas a complete unknown person, such as you or I, could walk through almost unhindered.

The Higgs field acts a little like that crowd and the Higgs boson is a ripple in this field, just as a photon is a ripple in the electromagnetic field.

By the late twentieth century the Standard Model had become an astonishingly successful theory. It explained quarks, leptons, gluons, photons, the weak force and an enormous range of experimental results, but there was still one piece missing.

The Higgs.

Without it, the mathematical framework simply didn’t work correctly. The Standard Model was like a jigsaw puzzle with a hole in the middle, and physicists spent decades searching for it.

Multiple generations of accelerators looked for clues, and found…

Nothing.

Then the LHC arrived on the scene, and on the 4th July 2012, CERN announced that the ATLAS and CMS experiments had independently observed a new particle consistent with the long-predicted Higgs boson. The statistical confidence even exceeded the famous five-sigma threshold, meaning the probability of the result being a random fluke was roughly one in several million. After nearly fifty years of theoretical expectation, the particle had finally been found. We had the Higgs Boson.

One of the most memorable images from the announcement was theoretical physicist Peter Higgs sitting quietly in the audience as decades of speculation became experimental reality. A truly remarkable sight, that pulls at the heart strings and to this day still lubricates my tear ducts with the memory. And as the significance of the result became clear, he reportedly wiped away his own tears. Just imagine it. Your life’s theoretical work becoming a fact of science. Wow. Just WOW!

A year later, in 2013, Peter Higgs and François Englert (sadly, Robert Brout had passed away in 2011 and Nobel doesn’t award posthumously), very much deservedly, received the Nobel Prize in Physics.

The discovery was monumental not because it opened a new chapter but because it completed an old one. For the first time, every fundamental particle predicted by the Standard Model had been observed and humanity had found the final missing actor in nature’s best-tested theory.

After such a triumphant discovery, you may be wondering what the LHC did next, and is still doing as I type this article. The Higgs may be the headline act, but it isn’t the whole show, as those clever dudes at CERN have been recreating the early universe.

The ALICE experiment studies something called quark-gluon plasma. Now then, ordinarily quarks are permanently confined inside protons and neutrons. But at the unimaginably high temperatures that existed shortly after the Big Bang, quarks and gluons formed a superheated fluid.

Heavy-ion collisions at the LHC briefly recreate these ancient conditions and for an instant, the Universe is returned to a state it last experienced nearly 14 billion years ago.

As we discussed in the dark matter article, most of the matter in the Universe appears to be invisible, and the LHC is very much hunting for this dark matter. Although it can’t directly see dark matter particles, if collisions create them, they may escape the detector unnoticed, so scientists are searching for the telltale signature of missing energy and momentum. Something leaves the collision carrying energy away, but nothing visible accounts for it. Thus far, no confirmed dark matter particle has emerged, but the search very much continues.

Physicists once hoped the LHC might discover evidence for supersymmetry, often shortened to SUSY. This idea predicts that every known particle has a heavier partner and supersymmetry could help explain dark matter, unify forces and solve various theoretical problems. Indeed, it was one of the most anticipated possibilities before the LHC began operations, and so far it has found…

Nothing.

Which is itself a scientific result. Nature is under no obligation to reward our favourite theories. Sometimes experiments confirm ideas, and sometimes they eliminate them, and both outcomes move science forward.

Then we have the matter-antimatter mystery. The LHCb experiment investigates why the Universe contains far more matter than antimatter. According to current theory, the Big Bang should have created them in nearly equal quantities, yet a Universe made of equal matter and antimatter would mostly have annihilated itself, an eventuality which quite clearly did not happen, and somewhere in the laws of physics, matter gained a slight advantage. LHCb is hunting for clues.

As we look at the bigger picture, the most remarkable thing about the Large Hadron Collider is not that it found the Higgs boson.

It’s that humanity built a 27-kilometre machine colder than outer space, accelerated particles to within a hair’s breadth of light speed, recreated conditions from the first moments after the Big Bang, and then used the resulting subatomic shrapnel to test ideas about the deepest structure of reality. All the Higgs really did was to complete the Standard Model.

But the Standard Model is not the end of the story. It still cannot explain dark matter. It says nothing about dark energy. It does not incorporate gravity. It leaves major questions unanswered. Which, in turn, means the LHC stands in a curious position, as it is both humanity’s triumph and an admission of ignorance.

We built it to answer questions. Instead, it gave us something scientists secretly like even more.

It gave us better questions!

P.S. I’ll do a post about the current upgrades the LHC is getting at the moment when it is up and running again.

ER=EPR: The Equation That Might Explain Everything (Or Nothing)

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Remember a few weeks back when I mentioned Wormholes and ER=EPR? Yes you do, it was in my Hawking Radiation article, I think, or was it… ??  Anyway, doesn’t matter. Wormholes and ER=EPR sit right at the edge of modern physics, and they’re both properly strange on their own. But put them together and things get stranger still. ER=EPR suggests spacetime itself might be built from quantum entanglement. And if that’s true, it could be a genuine clue toward unifying General Relativity and quantum mechanics. The Holy Grail of physics, finally within reach.

Ok, let’s start the whole shebang with wormholes, quantum weirdness, and the possibility that space is made of entanglement. Imagine you’re standing in the middle of an empty field, staring up into the night sky, without a single light around for miles to pollute your view.

As you stare into vastness above, a star on the other side of the Milky Way is so unimaginably far away that even the light, the fastest thing in the universe, has taken tens of thousands of years to reach the Earth.

That, folks, is what Douglas Adams was explaining when he wrote, “Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space.”

But what if distance is an illusion? What if the universe has secret shortcuts hidden beneath the surface of reality? And what if those shortcuts are connected to one of the strangest phenomena ever discovered: quantum entanglement?

Welcome, my readers, to the wonderfully bizarre world of wormholes and the mind-bending idea known as ER=EPR, a concept so radical that it suggests space itself might emerge from invisible quantum connections!

For decades, wormholes belonged mostly to science fiction. In Star Trek: Deep Space Nine, a wormhole is the biggest McGuffin that kept the show running through 7 seasons. A cosmic tunnel, allowing Benjamin Sisko et al. to travel from the Alpha to Gamma Quadrant whenever they want. In Stargate SG1, MacGuyver could travel to countless worlds throughout the galaxy. Then in Stargate: Atlantisss… Sorry, got a bit carried away there. Despite all the televisual sci-fi applications and cinematic exaggerations, the actual truth is that wormholes were born not in Hollywood. They came from Einstein’s equations.

Back in 1935, Albert Einstein and Nathan Rosen discovered a curious mathematical feature hidden inside General Relativity. Their equations seemed to allow a bridge linking distant regions of spacetime, which became known as the Einstein-Rosen Bridge (I know I’ve mentioned it before, but it was this that got me into all of this).

There was a catch though in that the bridge wasn’t a practical tunnel as it collapsed too quickly for anything to pass through. You couldn’t fly a spaceship through it. You couldn’t send a message through it. The mathematics allowed its existence, but nature appeared to slam the door shut before anyone could use it.

This didn’t stop physicists thinking about them. How could they? The idea was irresistible! If spacetime can bend under gravity, perhaps it could also fold. Going back to one of my previous analogies, imagine drawing two dots on a sheet of paper. The shortest path is a straight line between them. But if you fold the paper so the dots touch, you’ve created a shortcut. A wormhole is essentially the universe doing something similar with space itself.

Unfortunately, the universe isn’t that eager to cooperate.

Every serious attempt to build a traversable wormhole runs into a major obstacle as the tunnel wants to collapse. To hold it open, physicists believe you’d need something called exotic matter, a substance with negative energy density. That’s not just rare. It’s something we’ve never discovered in the quantities required to prop open a cosmic tunnel, and it is at this point that the story should have ended as an interesting mathematical curiosity.

It didn’t. What it did instead was to become much stranger. And to understand how and why, I need to take you on a detour into the quantum world.

Imagine two particles born together in a special way. Quantum mechanics says they can become entangled, meaning their properties are linked no matter how far apart they travel. Measure one particle and you instantly learn something about the other. As we all know, Einstein absolutely hated the idea, which he famously called “spooky action at a distance.”

The weirdest part is that entanglement has been tested repeatedly and appears to be a genuine feature of reality. Yet despite how strange it seems, it cannot be used to send messages faster than light. The universe somehow preserves Einstein’s speed limit while still allowing these remarkable correlations to exist.

So physicists faced a mystery. Why does entanglement exist? What is happening underneath? For years no one really knew.

Then, in 2013, physicists Juan Maldacena and Leonard Susskind made an outrageous proposal. They suggested that two ideas Einstein helped create in the same year, 1935, might actually be the same thing. One of these papers introduced us to the Einstein-Rosen bridge, while another introduced us to the Einstein-Podolsky-Rosen paradox, and it is this that led to the modern concept of entanglement.

Maldacena and Susskind condensed their shocking idea into these characters:

ER = EPR.

Which in plain English simply means…

A wormhole and quantum entanglement may actually be different descriptions of the same underlying reality!

At first glance, it sounds completely absurd. You’re telling me two entangled particles on opposite sides of the galaxy are connected by a wormhole? Remarkably though, that’s close to the idea. Not a giant science-fiction tunnel. Not a portal for spaceships. Not a shortcut you can travel through. Instead, a tiny, non-traversable geometric connection embedded within spacetime itself.  If you look at it like that, all of a sudden, entanglement doesn’t appear quite so magical, does it?

Instead of imagining particles somehow communicating through empty space, ER=EPR suggests they’re connected in a deeper geometric sense. Space says they’re separated. Reality says they’re linked. And that’s where the rabbit hole becomes truly dizzying.

Physicists began asking a new question.

If entanglement creates connections, could enough entanglement actually create space itself?

This, folks, is one of the hottest ideas in theoretical physics today. Instead of treating space as the stage on which physics happens, some researchers suspect space is more like a fabric woven from quantum entanglement, and if you pull on enough quantum threads, the fabric itself might fall apart.

Think of it as a knitted jumper. From a distance you see a smooth surface, but when you get up close, you can see all the individual threads. Likewise, space may look continuous and seamless because we’re observing it from far away. But zoom in deeply enough and the smooth fabric of reality could be built from an unimaginably vast network of quantum links joining everything together. If that’s true, then what we call distance might not be fundamental.

Two regions of space could appear far apart while secretly being held together by deep patterns of entanglement and the geometry of the universe would emerge from information itself. The more you think about it, the more you realise that it’s an absolutely breathtaking possibility because it suggests that, at the deepest level, reality may be made not of matter or energy, but of information.

This idea has become especially important in black hole research, and all you regular readers know how much I love a black hole! To recap, black holes are where General Relativity and quantum mechanics collide head-on, creating paradoxes that seem impossible to resolve. ER=EPR offers a potential way out by linking black holes, information, and entanglement through hidden wormhole-like connections. While it is far from being proven, many physicists regard it as one of the most promising clues we have toward a theory of quantum gravity.

So where does that leave us? Have wormholes been discovered?

No.

Has ER=EPR been proven?

Not yet.

Can we travel through a wormhole to another galaxy?

Almost certainly not.

Yet even as speculation, the idea is extraordinary. A century after Einstein revolutionised our understanding of space and time, physicists are beginning to suspect that space and time themselves may not be fundamental at all. The universe may be more like a vast quantum web, with wormholes and entanglement representing different ways of viewing the same hidden structure.

In that picture, the deepest secret of reality is not matter, nor is it energy, it’s not even space!

What it is, is the invisible information-theoretic connections that bind everything together, stitching the cosmos into the seamless universe we experience every day.