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Filippo Biondi (2026) - The Great Pyramid's Underground Structures · The Joe Rogan Recap

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  Welcome to the Joe Rogan Recap and before we get going, please
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  follow us right here on Spotify to make sure you get sight of
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  our latest episodes in your feed.
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  Good to be here. So I want you to visualize the
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  Giza Plateau for a second. You know the image, right?
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  You've got the Great Pyramid, the Sphinx, the buses, tourists
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  everywhere, the camels. It's probably the most
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  photographed, most studied patch of sand on the entire planet.
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  We think we know exactly what's there, right?
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  Massive stone tombs built what, 4500 years ago by Khufu and
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  Caffrey? Case closed.
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  The history books are. All written exactly.
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  But what if, just imagine for a second that everything we see,
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  all those millions of tons of rock, is just the.
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  Casing the casing. Yeah, what if the Great Pyramid
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  is literally just the antenna sitting on top of a massive
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  machine buried a kilometer underground?
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  And I don't mean a hidden chamber or two, I mean a city
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  sized industrial complex. I mean that sounds like
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  something out of a sci-fi novel or a conspiracy theory thread
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  you find at 3:00 in the morning. It just sounds impossible.
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  It does. It absolutely does.
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  But today we are unpacking a conversation from the Joe Rogan
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  Experience episode Hashtag 2443 that argues this isn't theory,
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  it's hard physical data. The guest is Philippo Biondi.
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  And I think we need to start with his resume.
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  We have to, because if this was just some amateur explorer with
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  a dousing rod, I'd probably just tune out.
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  But Biondi isn't an archaeologist, is he?
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  No, and that's the critical distinction here.
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  Biondi is a telecommunications engineer.
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  His whole background is in signal processing and radar
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  technology. He's done work for the European
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  Space Agency and handled top secret research for the Italian
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  military. So he looks at the world through
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  physics and frequencies and data, not hieroglyphs.
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  Exactly. So his whole mission here and
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  the mission of this deep dive is walk us through the data he's
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  collected. He claims that using some really
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  advanced satellite technology, he has identified structures
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  under Giza that just shouldn't exist.
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  We're talking about vertical shafts going down 1.2
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  kilometers. Just to put that into
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  perspective for everyone, the Burj Khalifa in Dubai, tallest
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  building in the world, is around 828 meters tall.
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  Biondi is claiming there are man made shafts under the pyramid
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  that go deeper into the earth than the Burj Khalifa is tall.
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  That is just a staggering claim, and usually when someone makes a
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  claim that big, you have to ask for the proof.
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  So let's start with the how. Let's start with the tech.
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  Because of the technology's bogus, we can all go home.
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  He's not using ground penetrating radar, right?
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  I think most people have heard of GPR.
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  Correct Ground penetrating radar or GPR.
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  That's the standard tool. It's great if you want to find a
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  pipe under your driveway or maybe a shallow foundation, but
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  it relies on electromagnetic waves penetrating the soil.
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  And the problem is soil, especially if it's wet or has a
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  lot of minerals, it just absorbs those waves really quickly.
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  It attenuates the signal you're lucky to get, I don't know, 10,
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  maybe 20 meters of depth. So it can't see a kilometer
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  down. It's like trying to see the
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  bottom of the ocean with a flashlight.
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  That's a perfect analogy. It just can't do it.
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  So how does Biondi claim to see that deep?
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  Because he's not even on the ground, is he?
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  He's using satellites. Yeah, he's using something
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  called satellite based radio tomography.
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  It's a completely different animal.
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  He's using satellites orbiting about 600 kilometers above the
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  Earth, and they're moving at roughly 7 kilometers a second.
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  OK, hold on. How does a satellite whizzing by
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  in space see better than a radar sitting right there on the sand?
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  It's not about seeing in the visual sense or even in the
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  reflection sense. It's more about listening to
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  vibration. Biondi explains that the Earth
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  is constantly vibrating. There's a natural mechanical
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  vibration to the Crest from, you know, seismic activity, tidal
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  forces, atmospheric pressure, the.
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  Hunt of the Planet. Exactly.
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  And when those vibrations travel through the ground and hit an
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  underground structure, say a hollow tunnel or a void, they
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  change, they distort, they create a very specific
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  interference pattern. Is it kind of like OK if I tap
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  on a drywall to find a stud? I'm listening for the change in
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  the sound right? Hollow sounds different than
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  solid. That is a fantastic analogy.
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  Essentially, yes, but instead of your ear, he's using the Doppler
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  effect from space. As the satellite moves, it picks
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  up these tiny, tiny vibrational changes on the surface.
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  He calls them evanescent waves, and by processing the noise or
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  the entropy of the signal, he can reconstruct a 3D image of
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  what's distorting those vibrations underground.
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  Entropy is a heavy word in this context.
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  Does he just mean the randomness or like the disorder in the
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  signal? Precisely.
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  If the ground is solid rock, the signal looks one way.
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  If there's a giant hollow cube a kilometer down, the vibration on
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  the surface behaves differently. The entropy changes.
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  He's measuring that disturbance to map the void.
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  This is the part where I get skeptical.
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  I mean, it sounds like magic. I have a satellite and I could
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  see the center of the earth. Of course.
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  Did he bring any receipts? Did he prove this tech works on
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  something we can actually verify?
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  Because without a benchmark, it's just a cool story.
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  He did, and honestly, this is the strongest part of his entire
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  argument. Before he even touched Egypt, he
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  benchmarked this technology on known modern structures.
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  The most impressive example is Gran Sasso in Italy.
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  I've heard of this. This is the mountain with the
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  physics lab buried inside it. Yes, the National Institute of
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  Nuclear Physics has a massive laboratory buried 1.4km deep
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  inside the Grand Sasso mountain. It's where they study neutrinos
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  and dark matter. I mean really high end physics.
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  It's a huge complex of halls and tunnels.
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  Buried under solid rock. And Biondi scanned the mountain
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  from space without looking at the blueprints, and the
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  tomography came back as a perfect match.
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  He identified the tunnels, the main halls, even the specific
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  shape of the particle Collider and the interferometer.
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  He could literally see the machinery inside the mount.
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  That is, that's wild. So he blindly scanned a mountain
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  and found a nuclear lab that we know is there and all the
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  measurements lined up. Right.
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  And he didn't stop there. He did the same thing at the
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  Mosul Dam in Iraq. That dam sits on gypsum which
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  dissolves in water, so it's structurally really unstable.
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  He stand it and successfully mapped the turbines and the
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  grouting tunnels inside the dam structure itself.
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  He also mapped deep railway tunnels in the Alps.
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  So the premise is this, the tool works.
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  It found the Collider, it found the turbines, it found the
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  tunnels. Therefore, when he points it in
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  Egypt, we have to take the data seriously.
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  Precisely. You can't accept the scan of the
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  particle Collider as valid engineering and then just
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  arbitrarily reject the stand of the pyramids because the results
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  make us uncomfortable about our own history.
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  That's a fairpoint, so let's get uncomfortable.
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  What exactly did he find under the Giza plateau?
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  He started scanning back in 2019.
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  Initially he was just focusing on the Great Pyramid, the Khufu
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  Pyramid, but the data forced them to zoom out.
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  He found that underneath all three main pyramids and the
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  Sphinx, there is a connected network.
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  You mentioned vertical shots earlier.
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  Walk me through the dimensions here cuz I'm trying to visualize
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  this. Is it like a well?
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  It's like a well on steroids. The data shows these vertical
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  columns with diameters around 20 meters. 20 meters wide.
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  That's like the width of a six lane highway.
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  That's a massive hole. Correct.
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  And the shafts drop down to depths ranging from 600 meters
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  to 1.2 kilometers. And they aren't just empty
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  tubes. He describes A spiral nature to
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  them, almost like they have coils wrapped around the column.
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  Coils. That implies machinery.
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  It implies circuitry. It does not imply burial shaft.
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  It does not, and at the bottom of these shafts, deep in the
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  bedrock, he identifies massive chambers.
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  He was very specific about the numbers 80 meters by 80 meters
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  by 80 meters. Let's just toss on that a cube
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  80 meters on a side that is roughly the size of a football
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  field, but a cubic football field.
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  Buried a kilometer underground. That is an insane amount of
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  excavation. I mean even with modern mining
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  equipment that would be a multi decade project.
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  You'd have to remove millions of tons of rock.
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  And he's saying this all connects to the pyramids.
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  Yes, he describes a network of horizontal corridors about 3
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  meters high connecting all these vertical shafts.
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  The whole layout looks less like a necropolis and more like a
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  like a schematic, a circuit board.
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  Which brings us to the why. Because if you build a cubic
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  football field a mile underground, you are not doing
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  it to hide A mummy. No.
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  Biondi and Rogen seem to be on the exact same page here, that
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  the whole tomb theory is just dead.
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  They are very aligned on that. And to be fair, the tomb theory
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  has always had holes. No mummies ever found in the
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  Great Pyramid, no hieroglyphs in the main chambers.
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  The sarcophagus in the King's chamber was empty when it was
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  first opened, right? But Biondi takes it a step
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  further. He views the pyramid as the
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  lens. He talked about the zed right?
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  Or the DJ pillar. He did.
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  The Zed is an internal structure.
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  It's got multiple layers inside the pyramid, right above the
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  King's chamber and beyond these engineering view.
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  This structure acts as a low pass filter.
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  OK. For those of us who aren't audio
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  engineers, breakdown what a low pass filter is.
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  All right, imagine you're standing outside a nightclub
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  with really thick concrete walls.
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  You can hear the bass, right? Thump, thump, thump.
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  But you can't hear the singer or the high hat.
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  That's because the walls are acting as a low pass filter.
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  They let the low frequency energy pass through, but they
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  block the high frequencies. Got it.
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  So the pyramid is the nightclub walls.
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  In a way, Biondi thinks the pyramid collects mechanical
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  vibrations from the Earth's seismic shifts, wind hitting the
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  limestone underground water flow, and the ZED filters them,
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  allowing only a specific low frequency resonance to pass
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  through. And where does that sound go?
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  It focuses it. Just like a magnifying glass
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  focuses light into a hot point, the pyramid focuses this
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  vibrational energy directly into the King's chamber, and
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  specifically right into the center of the granite box, the
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  sarcophagus. This is where Rogan brought up
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  the psychedelic Disney World idea, and honestly, it is a
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  terrifying thought. The hypothesis is you aren't
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  dead in that box, you're alive. You lay in the granite box, the
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  machine turns on and the vibration just hits you.
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  It's the trip hypothesis. Biondi actually ran a simulation
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  on his computer to model the acoustics.
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  The data showed the energy collapsing perfectly in the
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  center of that box. If a living person were inside,
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  the acoustic intensity would be overwhelming.
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  It wouldn't just be loud, it would vibrate your very cells.
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  It would alter your Physiology so.
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  The consciousness machine, a device to induce an out of body
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  experience. That's the implication.
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  We know certain frequencies can alter brain states, gamma waves,
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  Theta waves. If you have a civilization that
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  didn't care about iPhones or combustion engines, but they
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  mastered resonance, maybe this was their version of the
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  Internet or space travel. Travel inwards instead of
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  outwards, becoming a God as the ancient texts might say.
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  But that implies a level of sophistication that just
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  completely contradicts the timeline Textbooks say 2500 BC.
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  Copper chisels, ramps, slaves, dragon rocks.
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  The band. He is throwing that whole
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  timeline out the window. Completely.
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  And he's not just doing it based on a feeling, he's basing it on
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  the condition of the machine. He connects the construction to
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  Zep Tepi. That's the Egyptian first time,
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  right? The legendary Golden age of the
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  Gods. Exactly.
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  Historians usually dismiss Zep Tepi as mythology, you know,
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  like the Garden of Eden. But Biondi dates the
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  construction of these underground systems to the
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  period between Zep Tepi and the Great Flood.
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  He estimates somewhere around 18,000 to 20,000 years ago.
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  That is twice as old as Gubekli Tepe, which is currently our
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  oldest known megalithic site. I mean that rewrites the entire
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  map of human history. And he points to the flood as a
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  very literal event that broke the machine.
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  This was a detail that really stuck with me, Biondi said.
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  When he was physically in the pyramid, exploring the
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  descending passage, he tasted the walls.
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  He licked the pyramid. Effectively, yes.
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  He touched the walls and tasted the residue on his fingers.
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  It was salt. Salt inside a pyramid in the
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  middle of a desert. Exactly.
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  And his scan data backs this up. Those deep 1.2 kilometer shafts,
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  they are currently blocked, they're filled with debris.
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  Biani's analysis says this is rubbish that was washed in by
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  massive amounts of seawater. So the narrative is an advanced
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  civilization builds a residence machine.
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  Then a global cataclysm hits. Maybe the younger, driest
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  impact. Maybe the melting ice caps a
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  massive tsunami of salt water, sweeps over Giza, submerges the
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  whole plateau and fills the machine with mud and sand.
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  And then the water recedes, the machine is clogged and broken,
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  the civilization is wiped out or scattered.
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  And then 10,000 years later, the dynastic Egyptians find these
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  massive structures sticking out of the sand and they repurpose
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  them, they adopt them, they worship them, but they didn't
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  build them. We are a species with amnesia.
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  It really does fit that Graham Hancock line perfectly.
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  It suggests we are living in the ruins of a prehistory we just
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  don't understand and beyond, he pointed out.
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  This isn't isolated to Egypt. Right, he dropped a few bread
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  crumbs about other sites. It's a global phenomena.
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  Possibly. He mentioned the Kerakova shaft
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  in Russia. This thing was found back in
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  2011. It's a vertical shaft with
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  highly polished walls, clearly engineered, going deep into the
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  ground. Nobody knows who build it
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  beyond. His analysis suggests it
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  connects to a similar underground network.
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  And he wants to go to Peru next. Yes to scan Sacsaywoman, those
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  are the walls with the massive marshmallow shaped stones that
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  fit together so perfectly you can't fit a razor blade between
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  them. Oh yeah, if his tech works
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  there, we might find that those walls are just the lid for
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  something much, much deeper too. So we have the data, we have the
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  theory, and we have the global context.
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  But unlike a lot of these guests who just speculate and sell
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  books, Biondi actually has a plan.
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  He wants to go down there. He does.
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  He's not content with just the radar images.
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  He has a proposal drafted to physically clean out the Giza
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  shafts. But you can't just send guys
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  with shovels down a 1.2 kilometer hole filled with flood
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  debris. That sounds like a complete
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  nightmare. No, it would be a suicide
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  mission for a human. The risk of collapse is way too
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  high. So he proposes using robots and
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  drones. He wants to excavate the debris
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  remotely to reach those 80m chambers.
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  Yeah. And the price tag?
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  He estimates around 20 million. $20 million.
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  That's, that's nothing. I mean, in terms of scientific
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  grants, we spent $10 billion on the James Webb telescope.
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  We spend billions on particle lighters, $20 million to
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  potentially discover the lost history of humanity seems like a
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  bargain. It's pocket change.
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  And what I really liked about Biondi's attitude is his
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  humility. He's working with the University
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  of Ferrari. He says, look, I'm the engineer.
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  I built the camera, I took the picture.
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  Now I want the academics and the explorers to take the camera and
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  go look right. He isn't trying to be the guru.
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  He just wants the door open. That's so refreshing.
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  Usually people with a theory this wild want to be the ones to
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  cut the ribbon and claim the prize.
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  He just wants the data validated.
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  He seems to genuinely believe these shafts are calling us,
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  that they're waiting to be clean.
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  It really forces you to rethink the arrogance of the present.
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  We tend to think we are the pinnacle of evolution because we
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  have silicon chips and AI. But Biondi is suggesting a
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  different branch of physics entirely, acoustic engineering
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  on a planetary scale. And if he's right, we've been
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  staring at the shell of a Ferrari for 5000 years, debating
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  the paint job while the engine is buried underneath the garage.
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  That's the image right there. We're all arguing about the
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  hieroglyphs on the hood while the V12 engine is rusting in the
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  basement. And the technology to verify it
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  exists. Right now.
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  This isn't theoretical future tech.
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  The satellite is in orbit, the robots exist.
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  It's purely a matter of will and permission.
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  Well, and politics. I imagine the Egyptian
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  authorities aren't exactly thrilled about someone claiming
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  their national heritage is actually 20,000 years old.
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  That is always the hurdle. Archaeology is deeply political,
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  but data has a way of forcing the issue eventually.
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  You can't ignore a 1.2 kilometer hole forever.
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  Here's the thought I want to leave you with, and it's one
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  that kind of kept me up last night after listening to this.
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  How for if Biondi is right and the pyramids are just the
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  antenna, and if the purpose of this machine was to generate a
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  vibration that alters human consciousness, what happens if
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  we spend that $20 million? What happens if we clean out the
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  shafts, fix the connections and turn it back on?
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  That is a question I'm not sure we are ready to answer, but I
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  would sure like to see us try. I'm with you.
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  Let's find the switch. Thanks for listening to the Joe
• 16:26
  Rogan recap. Go follow us on Spotify and
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  we'll catch you on the next deep dive.