Microsoft’s AI Found a Secret Layer Beyond the Universe’s Expansion!

Added: 2026-05-30

[00:00:00]It could have been the first event that sparked the expansion of our part of space, but it could be that there's a grander realm of space within which we sit as a small part.

[00:00:09]>> Researchers using Microsoft's Azure [music] cloud network recently uncovered startling evidence that challenges everything we thought we knew about the cosmos. It's as if our universe is brushing against a hidden layer, a higher dimensional space. What if the universe isn't just expanding into nothingness, but into something entirely [music] unexpected?

[00:00:32]How astronomers use data. [music] Astronomers and astrophysicists rely heavily on observational data from telescopes, satellites, [music] and various detectors positioned on Earth or in orbit. The cosmic microwave background, CMB for example, is a faint glow of light left over from the early universe, dating back to when everything was much hotter and denser. By studying tiny temperature variations in the CMB, scientists can piece together clues about the overall shape and fate [music] of the cosmos.

[00:01:06]Over the past two decades, missions like the Wilkinson Microwave Anisotropy Probe, WMAP, >> [music] >> and the Planck satellite have given us stunningly accurate maps of the CMB.

[00:01:18]These maps show spots that are a bit hotter or cooler than average, and their arrangement fits neatly with the idea that our universe had a very rapid period of expansion known as inflation in its earliest moments.

[00:01:34]Inflation helps to [music] explain why our sky looks uniform in temperature and density on large scales. [music] It stretched out any initial inhomogeneities, smoothing them across vast [music] region. But inflation studies also leave open the door to thoughts about whether inflation could occur multiple times or in multiple places, leading to a multiverse full of bubble universes. Though the term multiverse often appears in science fiction, it has serious consideration in some corners of theoretical [music] physics. If inflation can happen more than once, maybe each new inflationary burst creates a new bubble that evolves its own physics. Our bubble, if that's what it is, would be just one in a huge foam of universes. That brings us to data handling and the power of modern computing. In the last decade, cloud-based platforms have become indispensable for huge data sets.

[00:02:31][music] Scientific teams can run advanced simulations that combine a range of observations, galaxy surveys, gravitational wave signals, and even detailed measurements of how galaxies rotate and move. This is not just to confirm old ideas, but to look for unexpected patterns that might [music] suggest new physics. One such pattern pointed toward an unusual kind of drag at extreme distances. [music] Most cosmic models treat far-flung regions as mostly empty. After all, intergalactic [music] space is nearly a vacuum with just a few atoms here and there. But the simulation that harnessed the power of Microsoft Azure seemed to show what some called bulk resistance, an energy drag that arose in the equation, as if at large scales, the simulation's virtual particles were hitting a subtle wall of sorts. Dr. Emily Chen, one of the researchers leading the project, described the process like noticing that the equations balked at certain boundary conditions.

[00:03:35]Initially, they thought it was just an artifact of the model or a mistake in how they coded the simulation.

[00:03:44]But after running it many times and making changes, the odd boundary effect refused to go away.

[00:03:51]It behaved much like friction, something you'd see if two surfaces were rubbing against each other, except it involves the expansion of space itself. This raised eyebrows.

[00:04:02]Could it be that our universe is not alone? Scientists started chatting with experts on extra-dimensional theory, including Dr. Lisa Randall at Harvard.

[00:04:11]They asked her to look at the data.

[00:04:13]Interestingly, she found that the numbers converged in ways that matched her brane cosmology framework from years ago, an idea that had largely been shelved by many as too speculative.

[00:04:26]Digging deeper into dark energy. Dark energy remains one of the biggest mysteries [music] in modern cosmology.

[00:04:32]We know from various lines of evidence, supernova data, large-scale structure studies, and the CMB that the expansion of the universe is speeding up.

[00:04:43]Physicists named the unknown driving force behind this accelerated [music] expansion dark energy, but we don't really understand what dark energy actually is. The usual guess is that dark energy might come from something called the cosmological constant, an idea Einstein proposed and later regretted when he was working on general relativity. This energy remains constant and pushes the universe to keep growing, but the actual observed value of the cosmological constant is puzzling.

[00:05:13]According to naive theoretical estimates, it should be much larger than what we measure. The difference between theory and observation is so big that it's often called the worst theoretical prediction in physics. This mismatch leads many researchers to question if dark energy is something else, like a new kind of field or dynamic substance that changes over time. The quantum simulation that triggered the recent buzz was meant to see if dark energy could have a more complicated origin, maybe even one tied to quantum gravity effects on large scale. Some small factions of physicists have suggested that if we live in a higher dimensional environment, dark energy could be a side effect of how our four-dimensional universe interacts with these extra dimensions. What the Azure simulation found, which surprised everyone, was an unaccounted for drag at the edges of their model. The team went looking for reasons why cosmic acceleration might slow down under certain conditions.

[00:06:16]Instead, they uncovered evidence of a structured field outside the normal parameters of their virtual universe.

[00:06:24]They started calling this phenomenon bulk resistance because it reminded them of how brane theories describe friction.

[00:06:32]With a higher dimensional bulk, there's also a possibility that dark energy is not just a uniform constant, but includes contributions from neighboring cosmological layers or other branes. If another brane is close to ours in the higher dimensional bulk, maybe we notice these cross-brane effects as odd changes in how galaxies accelerate. Some even speculate that dark energy might vary depending on where you look in the cosmos or how big the region is that you're examining. Hints of extra dimension. The idea of extra dimensions goes back a long way, but it showed up prominently in string theory. In string theory, all particles and fundamental forces arise from tiny vibrating strings. The shapes and resonances of these strings determine whether we see them as electrons, quarks, photons, and so on. The mind-bending part is that strings are thought to vibrate [music] in multiple dimensions. Some theories call for 10, 11, or more. We only experience four of these, three spatial, one time. So what about the rest? One explanation is that these extra dimensions are curled up incredibly small. They're around us, but we can't detect them with normal experiments because they're so compact. Another approach says that maybe our four-dimensional space-time [music] is just a brane floating in a higher dimensional bulk. In that scenario, the extra dimensions aren't tiny, but we aren't free to move in them because we're stuck on our brane. Only gravity or certain exotic fields can travel between branes. Dr. Lisa Randall and Dr. Raman Sundrum famously proposed that our universe could be one of multiple branes stacked alongside each other.

[00:08:17]Differences in brane geometry would cause gravity to appear weaker in some branes than in others. This might solve tricky puzzles in physics, like the so-called hierarchy problem, which asks why gravity is so much weaker than electromagnetism or the nuclear forces.

[00:08:34]In a brane setup, some portion of gravity's strength leaks into higher dimensions, leaving only the leftover portion we see day-to-day. Over time, [music] many scientists began to doubt whether we'd ever find direct evidence for brane cosmology. Particle colliders like the Large Hadron Collider haven't revealed clear extra-dimensional signals, and no distinct footprint of brane collisions had turned up in large-scale cosmic observations. But the pockets of support for these theories never vanished entirely. The concept remained on the table because it tackled so many open questions in one elegant framework, like how to unify quantum mechanics and gravity. Now, the friction effects spotted by the Azure simulation have given new life to brane ideas. If our cosmic space is physically pressing against another dimension, it would leave a type of gravitational signature.

[00:09:29]The fact that the drag in the simulation differs by direction suggests we might be dealing with real structure on the outside. Think of two surfaces with ridges rubbing together. If one surface has certain patterns, friction will vary depending on how you push against it.

[00:09:47]Translating that to four-dimensional space-time and a higher dimensional bulk is challenging, of course, but mathematically, it can show up as precisely the variations the simulation found. Brain cosmology in real term.

[00:10:01]Brain cosmology can confuse people because talk of higher dimensions and surfaces [music] in theoretical physics can feel alien.

[00:10:09]But in simpler language, you can compare it to how a flat sheet of paper can exist in a 3D room. If you were a 2D being living only on that sheet, you wouldn't know there's a whole extra dimension above or below. You might move around and think your reality is complete. Maybe you could catch indirect hints of the third dimension if, for instance, you noticed objects that shouldn't be able to appear or vanish so easily in your 2D world. In brain cosmology, our three-dimensional space plus time is the sheet, but it's floating within a higher dimensional room. We can't easily move off the sheet, so we assume that the sheet is the entire story. Meanwhile, unknown processes might operate in that wider room shaping the cosmic environment.

[00:10:56]Gravity is the main suspect for bridging the gap between the brain and the bulk.

[00:11:02]If the bulk has different properties like an uneven shape or lumps made of extra-dimensional matter, then that might show up as weird gravitational effects in our four-dimensional world.

[00:11:13]The drag effects seen in the Azure simulation match the idea that there is texture to the bulk. Maybe there are undulating waves or a foam of possible different states that keep pressing back on our universe. This is not entirely new to brain theory, but it's the closest we've come to a potential numerical sign that it's more than a fancy idea on paper. Large-scale cosmic structures might interact with these extra-dimensional features, creating small but real influences that we can measure if we look carefully at a big enough chunk of the universe. Over billions of light-years, a few small anomalies in friction or expansion add up to something we might actually notice in galaxy distributions or the cosmic microwave background.

[00:12:02]Gravitational anomalies and their meaning. Gravitational anomalies have popped up in astronomy for decades. One example is something called the Pioneer anomaly, where two space probes, Pioneer 10 and 11, showed slight deviations from their expected trajectories. That effect ended up being explained by heat radiation, but it was a reminder that even small unexpected signals can spark big debates. [music] Another is the dark flow concept, which suggested that galaxy clusters might be moving toward one region of the sky faster than they should if they were only standard cosmic expansion. [music] Dark matter looked like a gravitational anomaly at first, too. Galaxies were rotating as if there was more mass present than we could see. That's how we coined the term dark matter. We assumed there had to be invisible matter. Today, dark matter is [music] strongly supported by many lines of evidence, but it remains unidentified at the particle level. Some scientists [music] wonder if each new gravitational puzzle might be the result of an incomplete understanding of space [music] itself.

[00:13:11]If we live in a brain with neighbors, we might be feeling their mass distribution as a hidden gravitational pull.

[00:13:18]Traditional calculations that assume our universe is all there is will always misinterpret that pull as a need for dark matter or some new force. The friction-like patterns from the Azure simulations might simply be the next step [music] in recognizing that there's something bigger at play. Additionally, the phenomenon of cosmic acceleration remains [music] puzzling. If we have multiple brains side by side, maybe their interactions create a push and pull effect leading to expansions >> [music] >> and contractions over huge time scales.

[00:13:51]Instead of just a single type of dark energy, we might be looking at a variety of influences from extra dimensions.

[00:13:59]Some directions see a stronger push leading to faster expansion, while in other directions the push is weaker or overshadowed by a different effect. Then we have gravitational wave detectors like LIGO, [music] Virgo, and KAGRA.

[00:14:15]They mostly catch signals from merging black holes and neutron stars, but in principle, they could detect exotic signals if brains bump into each other or if there's a dynamic boundary that rumbles [music] at frequencies we can measure. We haven't detected anything like that yet, but the instruments are still improving. Future detectors such as the Einstein telescope or cosmic explorer might become sensitive enough to pick up unusual wave signatures [music] from across or beyond our 4D world.

[00:14:45]Exploring the idea of the bulk. In brain language, the bulk is the higher dimensional region in which our four-dimensional universe is embedded.

[00:14:55]If our universe is a membrane, >> [music] >> then everything we see, galaxies, stars, cosmic dust, ourselves, is confined to that brain. The bulk surrounds it, possibly holding other brains. Some versions of these theories say the bulk is infinite, connecting an endless arrangement of universes. Others say the bulk might be finite, yet expansive enough that we can't fathom its full extent. One of the big draws of the bulk concept is that it provides a place for unexplained phenomena to come from.

[00:15:26]Where does the extra gravitational influence come from? Possibly from matter or energy that exists in a brain we don't see. Why is cosmic acceleration picking up speed? Maybe the shape or warp of [music] the bulk is pushing our brain outward. Why is gravity so weak compared to other forces? Because some of it is leaking into the bulk. At first glance, the notion of a bulk might seem purely mathematical, but the frictional boundary discovered in the Azure simulations is effectively telling us that the 3D cosmos plus time is interacting with something. If the friction varies in different directions, it suggests that the outside has texture or lumps or is not symmetrical. For example, if one side of our brain is near a denser region of the bulk, cosmic expansion could slow down in that direction. If another side faces a less dense region, expansion might accelerate more freely there. The possibility that the bulk has different zones or layers takes us into wild territory. Could there be entire sets of physical laws, different constants, or different types of particles just outside our brain?

[00:16:38]Some theorists even propose that each brain might have its own version of physics, meaning that some realities might have different nuclear processes or short-lived atoms or no stable matter at all. If that's the case, then we're lucky to be on a brain that can support stable matter, stars, planets, and life.

[00:16:57]The universe as a computational field.

[00:17:00]Another thread in this conversation is the idea that our universe might be deeply computational in nature.

[00:17:06]Physicist Max Tegmark has argued that at the most fundamental level, reality might be math. Our physical laws, particles, and everything else might be structures in a grand mathematical framework. Others have likened the universe to a quantum computer, constantly processing information. As the team tried to simulate the boundary behavior, they found something that looked eerily like error-correcting codes. Typically, you see those in quantum computing, where you try to protect delicate quantum states. But to see similar patterns at the edges of simulated space made them wonder if reality itself uses computational strategies. That's a huge leap, of course, but provocative. One interpretation is that if our universe is embedded in a bigger system, maybe there are constraints on how information can flow across that boundary. The friction or drag might be part of a guardrail that keeps the local program consistent. Another possibility is that the quantum fields near the edges reorganize in a simpler way, requiring fewer computational resources. That might explain why the simulation simplified at small scales near the boundary, like it was optimized. This doesn't necessarily mean we're living in a simulation that some advanced alien civilization set up. Some scientists argue that computation could be a fundamental property of nature itself.

[00:18:33]The laws we see could be emergent rules from deeper layers of informational processing. Under that view, space-time, particles, and fields are all excitations in a cosmic quantum computer. In various corners of physics, folks talk about the holographic principle, which suggests that the information in a region of space can be described by data stored on its boundary. [music] It's often formulated with black hole horizons, where the entropy or information content is proportional to the area of the horizon, not the volume. If the entire universe has a boundary of some sort, that principle might apply on a grander scale. Perhaps all the information that describes our universe is encoded on its distant boundary. Tying that to the friction idea, we might say the boundary is not just a silent shell, but an active interface that handles data. If the expansion of our universe tries to push through, it might cause ripple effects or compression in that interface. These effects could come back as the friction we detect. In that sense, [music] the boundary acts like a membrane in a living cell, selectively filtering what passes in or out.

[00:19:46]Boundaries, firewalls, and strange edges.

[00:19:49]The Azure study also reported that in some of the simulations parameter settings, the universe seemed unable to expand beyond a certain limit. It felt like hitting the edge of a map or seeing a null value in the math. No matter how researchers tweaked the assumptions, they got the same result. The physics equations refused to go further. This phenomenon got nicknamed the cosmic firewall, suggesting that beyond it our laws might not apply or maybe there is simply no space to expand into. Some scientists find that idea reminiscent of black hole event horizons, which some have called firewall due to paradoxes about what happens to information falling in. The cosmic firewall would be more like an outer boundary on the largest scale, the place where our universal model breaks down. Maybe, just like how the event horizon of a black hole is the dividing line between inside and outside, the cosmic firewall is the line between our universe and a realm with entirely different physics. [music] One reason this caused excitement is that it's the first time advanced computational models robustly predicted a hard edge. People have always asked, "Does the universe go on forever or does it have a boundary?"

[00:21:05]Typically, mainstream cosmology suggests no boundary, just an unending continuum.

[00:21:11]But these new results, if they hold up, might show that there is some higher-level boundary we can't cross.

[00:21:18]That boundary might act like a speed bump scale. Instead of letting the universe expand indefinitely, it could slow the expansion as we approach it.

[00:21:23]Imagine a race car on a track with friction that increases the farther you go. The car never reaches top speed because the friction keeps growing.

[00:21:25]Likewise, the simulation indicates cosmic expansion might never truly hit the boundary. It just gets asymptotically close.

[00:21:43][music] Many have asked if that firewall could be artificial, like a program limit in a grand simulation. Others think it could simply be a natural feature of extra-dimensional geometry. Perhaps our brain will eventually merge with another or fold back in some cyclical cosmic process. The important point is that this boundary is not something you can just cross. The equations themselves seem to refuse to continue. If this is true, it might also rewrite some predictions about the far future.

[00:22:16]Standard cosmology suggests that if dark energy keeps driving expansion, galaxies will get farther and farther apart and the universe might face heat death in trillions of years. But if there's a firewall, maybe the universe can't expand past a certain point. That might mean entire new phases of cosmic evolution. We can only speculate. The multiverse angle. The next big leap is the idea that we don't just have a single adjacent brain, but many, possibly countless.

[00:22:49]Greater expansions of the brain cosmology concept blend with the multiverse notion from inflationary theory and quantum mechanics. Put simply, maybe there is an entire stack or cluster of universes near ours, all living in the same higher-dimensional bulk. In eternal inflation models, once inflation starts in one region, it can spawn new pockets of inflation. Each pocket becomes its own bubble universe.

[00:23:16]Our observable cosmos is one such bubble. The rest are beyond our horizon, but they might exist at a higher level.

[00:23:23]If brain theory also has a say, these bubbles might be brains that float in extra-dimensional space. Every bubble might have different constants of physics, different amounts of dark energy, or even a different number of dimensions. This perspective can explain why our universe seems fine-tuned for life.

[00:23:45]If there are countless universes, each with slightly different laws, then it's not surprising that at least one universe ended up with stable atoms, stars, and planets. We're simply in the one where conditions allow life to ask questions. Anthropic reasoning, [music] as it's called, views our universe as just one side of a huge roulette wheel that has spun many time. A potential sign that other universes are real is if they bump into ours. Colliding brains would leave huge imprints in cosmic data, like ring-like patterns in the cosmic microwave background. People have looked for these cosmic bruises, but so far the evidence is inconclusive. The friction signals in the Azure simulation might be a minor version of that. Maybe we're not fully colliding, but we're brushing surfaces with a neighboring brain. Outside the hardcore physics community, the multiverse has captured the public imagination. It shows up in movies, TV shows, and lots of pop culture references.

[00:24:48]But it's important to note that it's still hypothetical. Scientists debate if it can ever be tested directly or if it remains in the realm of inference based on theories that are themselves incomplete. Yet each new clue, like the friction effect, gives a little more weight to the possibility that our cosmic bubble isn't alone.

[00:25:08]Black holes and cross-dimensional paths.

[00:25:12]Black holes come into play because they're extreme objects where space-time is curved so severely that nothing, not even light, can escape once it crosses the event horizon. There's a puzzle called the information paradox. In standard physics, information about matter can't be destroyed, yet it seems to vanish when swallowed by a black hole. Stephen Hawking suggested that black holes slowly evaporate via Hawking radiation, but that didn't solve the question of where the information goes.

[00:25:43]Some new interpretations say black holes might act like tunnels to other parts of the multiverse or to other dimensions in the bulk. Instead of crushing matter into oblivion, perhaps black holes funnel it through a throat that leads outside our brain. This might mean the information paradox is resolved because the data is not really lost, it's transferred. If that scenario is correct, black holes turn into [music] cosmic doorways. Admittedly, it's still speculation, but modern theoretical models keep pointing to cross-brain interactions as a neat fix for paradoxes about information. Moreover, if black holes do connect to other dimensions, maybe their edges are places where the friction or brain contact is strongest.

[00:26:30]The gravitational wave patterns we see when black holes merge might hold subtle signs of these connections. If two black holes on our brain also link to the bulk in a certain way, their merger could create a ripple that extends beyond normal 4D space.

[00:26:48]Possibly showing up as unusual wave signals or missing energy. That's why the next generation of gravitational wave observatories is so exciting.

[00:26:57]They'll have higher sensitivity and might catch glimpses of these anomalies.

[00:27:01]Even if we don't find direct evidence that matter flows out of our universe through black hole, we could find secondary clues in wave patterns or unusual side effects in the radiation around black hole. Finally, while it feels mind-blowing to picture black holes as cosmic exit points, we shouldn't forget how far we've come in understanding them just in standard 4D physics. We know black holes form from collapsed stars or from direct collapse in early galaxies. We see them influencing galaxy formation and merging to create gravitational waves. Layering extra-dimensional theories on top of that is a massive leap, but it's the kind of leap we see more and more in theoretical physics.

[00:27:48]As we keep gathering data from cosmic expansion rates to black hole mergers, the puzzle pieces might fit together in unexpected ways. If the friction at our universe's boundary is real and if multiple brains share the bulk, then black holes might be just one of many ways that information passes between these realms. [music] It's a big if, but each fresh bit of evidence encourages us to investigate deeper. And so, new questions emerge. Could advanced civilizations harness [music] black holes to explore other brains? Is that just a science fiction dream? Thanks for watching another episode. While you are still here, make sure to click the video on your screen for more quality content.