Joe Rogan Experience #2443 - Filippo Biondi
Joe Rogan (host), Filippo Biondi (guest), Joe Rogan (host)
In this episode of The Joe Rogan Experience, featuring Joe Rogan and Filippo Biondi, Joe Rogan Experience #2443 - Filippo Biondi explores satellite radar vibrations suggest vast underground structures beneath Giza pyramids Filippo Biondi, a telecommunications engineer specializing in synthetic aperture radar (SAR), describes a method he says can reconstruct underground “tomographies” by analyzing surface vibration information captured from satellites rather than directly “penetrating” the ground.
Satellite radar vibrations suggest vast underground structures beneath Giza pyramids
Filippo Biondi, a telecommunications engineer specializing in synthetic aperture radar (SAR), describes a method he says can reconstruct underground “tomographies” by analyzing surface vibration information captured from satellites rather than directly “penetrating” the ground.
Using over 200 scans from multiple satellite systems (Italian COSMO-SkyMed and others like Capella), his group claims to see repeating vertical structures with spiral characteristics beneath the Khafre pyramid and across the broader Giza Plateau, terminating in very large chambers.
Biondi argues the method is validated via benchmarks (e.g., imaging known tunnels, dams, and Italy’s Gran Sasso underground laboratory), while critics dispute feasibility and interpret results as artifacts.
The discussion extends into hypotheses about pyramid function (vibration/resonance, “filters,” possible power-plant models) and proposes a practical next step: clearing existing shafts near the Sphinx/Khafre area and sending robots to investigate without major excavation, estimated at ~$20M.
Key Takeaways
The core claim is underground mapping from surface vibration, not direct radar penetration.
Biondi repeatedly emphasizes that satellites capture Doppler-related vibration information at the surface (“entropy”), which is then inverted into tomographic images—countering the common criticism that SAR can’t penetrate ~1 km of rock.
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The team says the method reproduces known internal pyramid features, used as a validation step.
Before expanding to deep subsurface scans, they tailored processing to the Khufu pyramid and claim it correctly showed known chambers and passages (Grand Gallery, Queen’s/King’s chambers) and additional internal structures.
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Multiple independent satellite sources are presented as a check against processing artifacts.
Biondi says initial skepticism lasted months; the group only disclosed after seeing consistent results across different satellite constellations (Italian and American) and hundreds of scans.
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The most provocative finding is a repeating deep geometry under multiple monuments.
They describe regular vertical structures with spiral-like characteristics beneath pyramids and the Sphinx, connected by ~3 m-tall corridors and ending in large chambers claimed to be ~80×80×80 m, at depths discussed up to ~1.2 km.
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A practical verification pathway is proposed that avoids “digging the plateau.”
Biondi argues existing shafts between the Sphinx and Khafre could provide access; the plan is to clear debris and deploy drones/robots for safe inspection, potentially validating or falsifying the remote-sensing interpretation.
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Benchmarks outside Egypt are used to argue the technique’s credibility.
He cites successful reconstructions of known underground/embedded infrastructure: the Gran Sasso lab (deep mountain facility), a major rail tunnel, and Mosul Dam internal features (tunnels/turbines) as accuracy demonstrations.
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Speculation about pyramid purpose centers on resonance/vibration engineering.
Biondi frames the “Zed” as a vibration “antenna” and “low-pass filter” guiding energy toward the granite box (not a sarcophagus), and he entertains—non-scientifically—the idea of induced altered states or other functions, while insisting his role is measurement, not final interpretation.
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Notable Quotes
“Skepticism. Skepticism. ... we had those results ... without disclosure ... for six months.”
— Filippo Biondi
“We are not penetrating anything. Because we are just grabbing the entropy that is on the surface of the Earth, and ... retrieving tomographies.”
— Filippo Biondi
“More than 200 [scans].”
— Filippo Biondi
“Today, we are sure ... that the pyramids are not tombs.”
— Filippo Biondi
“It’s a crime to not investigate.”
— Joe Rogan
Questions Answered in This Episode
What, precisely, is the mathematical pipeline from Doppler/SAR measurements to the final “tomographic inversion,” and which steps are most sensitive to artifacts?
Filippo Biondi, a telecommunications engineer specializing in synthetic aperture radar (SAR), describes a method he says can reconstruct underground “tomographies” by analyzing surface vibration information captured from satellites rather than directly “penetrating” the ground.
Get the full analysis with uListen AI
Can you publish (or provide controlled access to) raw/near-raw SAR inputs and full processing code so an independent lab can replicate the Giza results end-to-end?
Using over 200 scans from multiple satellite systems (Italian COSMO-SkyMed and others like Capella), his group claims to see repeating vertical structures with spiral characteristics beneath the Khafre pyramid and across the broader Giza Plateau, terminating in very large chambers.
Get the full analysis with uListen AI
Your benchmarks (Gran Sasso lab, tunnels, Mosul Dam) are compelling—what are the quantitative error bounds (meters, confidence intervals) compared to ground truth?
Biondi argues the method is validated via benchmarks (e. ...
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How do you distinguish “spiral/coil” structures from periodic processing artifacts (e.g., windowing, sidelobes, Doppler ambiguities) that can also produce repeating patterns?
The discussion extends into hypotheses about pyramid function (vibration/resonance, “filters,” possible power-plant models) and proposes a practical next step: clearing existing shafts near the Sphinx/Khafre area and sending robots to investigate without major excavation, estimated at ~$20M.
Get the full analysis with uListen AI
You cite shafts reaching ~600 m and structures down to ~1.2 km—what geological priors (density layers, bedrock models) are assumed in inversion, and how do results change if those priors vary?
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Transcript Preview
[upbeat music] Joe Rogan Podcast, check it out!
The Joe Rogan Experience.
Train by day, Joe Rogan Podcast by night, all day. [upbeat music] How are you, sir?
Fine, thank you.
Thank you very much for being here. I'm really excited to talk to you. Uh, obviously, there's been an amazing amount of interest and controversy because of your work. Uh, we should explain to everybody right off the bat what this is about. You are the man that was at the head of this research that is looking at structures that are underneath the bottom of the pyramid, and, uh, incredibly controversial, very fascinating, and if it's accurate, it essentially rewrites all of human history.
Yes. Uh, thank you for, uh, this invitation, and, uh, yes, the group is composed by Corrado Malanga, which is the head of the group, and, uh, uh, dean professor of ch- chemistry at University of Pisa. Uh-
Can you explain your background, please, so people-
Yes
... understand? Yeah.
Yes, my background is, uh, this, I am a telecommunication engineering. I graduate, uh, at the university-
What is that word again? Say it again.
Telecommunication engineering.
Telecommunications engineering.
Yes.
Okay.
Yes.
It's like, your, your English is excellent, but the Italian accent, although fabulous, sometimes it's [chuckles] difficult to translate.
Thank you very much, Joe. Uh, I'm sorry, yes, that I'm not mother tongue of English, but-
It's still m- much better than my Italian. [laughing]
[chuckles] Okay, thank you. Yes, I graduated myself in, uh, university, at the University of Lecce, south of Italy. Uh, very nice university, and, uh, it, it was, uh, uh, it is, uh, uh, has the name of a famous, uh, mathematic, mathematic Italian, uh, which is Ennio de Giorgi. Uh, Ennio de Giorgi, um, was, uh, living in the era than John Nash was living also, and they, uh, were, they were one against to the other, and, uh, they were, they was, uh, both, um, studying the 19 Hilbert prob- problem, and John Na- um, Ennio de Giorgi solved this pro- this problem one week before John Nash.
Ah, interesting.
Yeah.
John Nash, who, from the famous movie-
Yes
... Brilliant Mind.
Yes.
Russell Crowe.
Yes.
Yeah.
And so, uh, then I performed my PhD at, uh, La Sapienza in Rome, uh, and now I'm here.
And how did you get involved in this, this discovery?
Yes. Um, I worked, uh, on radar and synthetic aperture r- radar for a lot of time. Um, a radar-
For the Italian military-
Yeah
... right?
Yes.
Some work.
Yes, yes, some work.
Which you can't really talk about.
No.
No. Right.
Uh, and, uh, I was, uh, um, uh, involved in some research where, um, together with, uh, uh, the Italian Research Council of Bari, always south of Italy, uh, we, we was testing some, uh, special processing, uh, that, uh, were able, were able to, to, to perform something special.
Mm-hmm.
And so this is. [chuckles]
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