A preprint posted in August says Giza’s outer measures encode sky cycles and a creation mound. Tabloids ran it this week as a cracked secret. Egyptology still calls the building a royal tomb. Here is what the paper actually tests — and what it does not prove.
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Key Takeaways by Planet Today
The claim on the table: Independent researcher Sefy Levy argues that six exterior measures of Khufu’s pyramid, run through Egyptian unit fractions, hit ten of fourteen calendrical and astronomical values known from the Egyptian record — close enough, he says, that chance is a poor explanation.
What the paper is not: It is not a peer-reviewed journal article. It is a preprint on SSRN and Zenodo, dated 23 August 2026, with code deposited beside it. No excavation, no new inscription, and no mummy has changed hands.
What the press added this week: From 11 September 2026, Metro, the New York Post, The Sun, NDTV and others framed the work as a “Da Vinci Code” in stone and, in some write-ups, as proof that the builders already knew the Earth’s size. That last leap is media language. It is not the test Levy reports in the deposited abstract.
What Egyptology still holds: The Great Pyramid remains, in the standard account, a Fourth Dynasty royal tomb for Khufu, oriented to the cardinal points, with a slope near 51°52′. Britannica still lists three symbolic readings of the pyramid form — stairway for the king’s ka, rays of the sun, or the primeval mound of creation — without treating the building as a data vault.
Why the argument will not die: The chambers are empty of a body. The Giza sarcophagus in the King’s Chamber could not have been carried through the finished passages. Those two facts are old, public, and still unused by a closed case. They are also not, by themselves, a decoded sky catalogue.
The live implication: If later specialists reproduce Levy’s scoring and still find the same excess of hits, the debate shifts from “tomb or not” to “tomb plus encoded calendar.” If they cannot, the week’s headlines join a long shelf of pyramid numerology that began in the nineteenth century.
A week of headlines, a paper from August
On 11 September 2026, British and American tabloids picked up a preprint that had been sitting in the open since late August. Metro called it a mathematical code that “may unlock” a new secret. The New York Post said the code “reveals the tomb’s true purpose.” The Sun reached for “Da Vinci Code.” By 12 September the same package was on NDTV, Spanish dailies and Indian business pages.
The source document is narrower than those headlines. Sefy Levy, an independent researcher based in Israel, posted The Pyramid as Memory Hypothesis: The Hill That Rose from the Waters, Made into a Pyramid — Pyramid Texts, Utterance 600 on 23 August 2026. Copies sit on SSRN and Zenodo, with analysis scripts and raw output in the same deposit. Levy is not attached to a university Egyptology department. His public record lists technical work in Israel and a series of 2026 preprints on Saharan migration, the Shemsu Hor, minor step pyramids and the Sphinx. That background matters only because readers should know who is speaking, and from which desk.
The paper’s opening move is factual and old. The monument’s Egyptian name was Akhet-Khufu, the Horizon of Khufu. No royal mummy has been recovered from any of the three Giza pyramids. The chambers are bare. The granite box in the King’s Chamber was set during construction and is too wide to have been dragged through the finished corridors. None of that is new. What Levy does with those facts is the argument.
“The pyramid was not built to last forever because it contained something valuable… it was because it was something valuable.”
— Sefy Levy, The Pyramid as Memory Hypothesis (2026), as quoted in contemporaneous press
A second line, repeated across the week’s coverage, is sharper: the pyramid is not a container for knowledge. It is “the knowledge, made stone.”
What the measurements are said to do
Levy does not start from metres and a modern calculator. He starts from the design the field already uses for Khufu: a square base of 440 royal cubits and a seked of 5½ — the Egyptian slope measure that produces the familiar face angle near 51 degrees. From those two choices he derives six exterior dimensions. He then applies the sixty-three sums available from Horus-eye (Wedjat) fractions and the multiplications and divisions attested in the Rhind Mathematical Papyrus, a scribe’s handbook from later in the second millennium BCE that preserves older methods.
Those operations are scored against fourteen astronomical and calendrical values that Levy says are documented in the Egyptian record. The deposited summary states the result in plain numbers: ten of the fourteen targets fall within ±0.2 percent. Four miss, and the misses are listed with their sizes. Four further targets were dropped because they could be reached only by operations the method forbids. Each removal, he notes, lowered the reported count. That is an honest detail. It is also the sort of detail a peer reviewer would press.
Secondary reports this week named two of the hits that travel well in print. One calculation yields 27.5, set beside the 27.55-day interval between successive lunar perigees — the Moon’s closest approaches to Earth. Another yields 70, set beside the roughly seventy days when Sirius is lost in the Sun’s glare, a span tied in Egyptian timekeeping to the star’s heliacal rising and to the civil year. Other write-ups add Venus and Jupiter cycles, and the old pair of constants that have haunted Giza literature since the 1800s: pi and the golden ratio.
Pi is not a Levy invention. If the perimeter of the base is divided by the height, the ratio sits close to 2π. John Taylor noticed that in the nineteenth century. The slope that produces it is the same seked 5½ that gives a practical 22/7-style approximation. Mathematicians have spent a long time asking whether the builders aimed at pi or simply chose a clean Egyptian slope that happens to look like pi when later readers use later units. Levy’s paper treats the constants as part of a wider scoring exercise, not as a standalone proof that Giza is a scale model of the globe.
To test coincidence he reports four null models. The primary test, as described on Zenodo, is tolerance-independent. Downsampled to equal size, neither Egyptian unit fractions used at random, nor Babylonian sexagesimal, nor ordinary decimal, reached the same score in twenty thousand draws. A negative control is also reported: under the same rules the monument hits stellar positions at the rate chance predicts. Secondary coverage, following the Daily Mail and the New York Post, described a separate computer check of 100,000 Old Kingdom-style pyramids with scrambled dimensions, of which about 2.4 percent matched as well as Khufu or better. Readers should treat that figure as press restatement until they open the deposited scripts themselves. The scripts are there. That is more than most viral pyramid papers offer.
Two readings Levy puts on the same stone
The numerical work is only half of the hypothesis. The other half is cosmology.
In the Heliopolitan creation account, the world begins as Nun, a dark water without shore. A mound of dry land — the benben — rises from that water. The creator god Atum stands on it and begins the ordered world. Later temples kept a benben stone. Pyramidions on royal tombs repeat the same pointed mound. Britannica, which is not in the business of alternative archaeology, still lists “the ancient mound of creation” as one of the three mainstream guesses for why Egyptians chose the pyramid form at all. Levy’s move is to treat Giza not as a late echo of that myth but as a full architectural restatement of it — “the hill that rose from the waters, made into a pyramid,” in the words of his subtitle, which points at Pyramid Texts Utterance 600.
He then takes a second step that Egyptology does not take. He folds the mound into a longer story he has been writing all year: that the sacred geography of early Egypt is cultural memory of the Green Sahara, carried east when the African Humid Period collapsed around 5500 BCE, and that the Eye of the Sahara — the Richat Structure in Mauritania — is one candidate for the landscape those groups remembered. In that frame the pyramid is a monument to a lost home as much as a machine for a king’s afterlife. There is no inscription that says this. There is a chain of earlier Levy preprints — The Zep Tepi Hypothesis, Phase Zero Hypothesis — The Bull in the Sky — that try to make the chain testable with orientation data, minor step pyramids and archaeometry. Those papers are also unreviewed. They are part of the same author’s case, not independent confirmation.
What mass media said, and what it quietly dropped
Mass-market coverage this week did three consistent things.
First, it treated the absence of wall carving inside Khufu’s pyramid as a puzzle that Levy had uniquely noticed. It is not unique. Old Kingdom pyramid interiors at Giza are largely plain. Continuous Pyramid Texts appear later, in the late Fifth and Sixth Dynasties. The usual historical answer is sequence: the writing tradition on inner walls had not yet been applied to these tombs. Levy’s counter is that Giza did not need writing because the measures were the text. That is a hypothesis, not a demonstration that the standard sequence is wrong.
Second, several outlets stretched the paper toward planetary surveying. The brief that circulated with the Metro piece said the pyramid “mimics the scale of the planet,” that the builders knew Earth was a sphere, and that the monument was an “ancient encyclopaedia” of coordinates. Those sentences are the register of popular mystery writing. They are not the scoring protocol in the Zenodo description, which tests Egyptian calendrical and astronomical values, not a measured meridian or a satellite geoid. A reader can believe the ten-of-fourteen claim and still reject the globe-model claim. They are not the same statement.
Third, the press noted the lack of peer review and then, in most cases, did not call an Egyptologist on the record. LADBible was blunter than most: the hypothesis is “highly speculative” because the paper is unreviewed and because no ancient text directly ties the pyramid’s dimensions to astronomy or to the Eye of the Sahara. That is the correct caution. It should have been in every lede.
Alternative and mystery-leaning outlets did the mirror image. They took the empty chambers, the pi ratio, the Sirius interval and the benben myth as a single unlocked door, and they placed Giza in the same family as Hall-of-Records stories and lost-homeland maps. Some of those themes already live on this site in a different key — see the May 2026 file on a CIA photo inventory line reading “Temple under Sphinx,” and the 2025 write-up of a hydraulic-lift argument for Djoser’s Step Pyramid. Those pieces are adjacent curiosity, not proof of Levy. Adjacent is not the same as confirmed.
Related reading on Planet Today: Declassified CIA Docs Reveal the Sphinx Has Been Guarding a Forbidden Temple Since WWII · Egypt’s Step Pyramid Built with Hydraulic Tech, Study Reveals · Anthropic 10% AI Risk: Warning, Race, or Depopulation Blueprint?
The tomb that will not leave the room
The consensus position is short enough to say without a sneer.
Khufu, second king of the Fourth Dynasty, ordered the Great Pyramid on the Giza plateau in the middle of the third millennium BCE. Its base sides average about 230 metres. Its original height was about 147 metres. The faces rise at roughly 51°52′ and track the cardinal points with an accuracy that still impresses surveyors. Workers’ graffiti, the cemetery of the builders, the associated boat pits, the causeway and the valley temple, and the later Greek identification of the monument as Cheops’ tomb are the ordinary scaffolding of that account. Britannica still writes “royal tombs” in the first sentence and then, to its credit, lists the symbolic extras: a stair for the ka, sun’s rays, the mound of creation.
That last item is why Levy can claim he is not flying blind. Egyptian religion already used the pyramid shape as a creation image. The dispute is whether Giza is only a tomb wearing that image, or a tomb that also stores a numerical memory of sky cycles and a western landscape. Those are not the same claim, and they do not fall together. A building can be a king’s house of eternity and still have been laid out with a slope that later readers can force into pi. A building can be a king’s house of eternity and still contain empty rooms. Empty rooms do not automatically become a library.
Critics of pyramid numerology have a standard reply, and it is not contempt. It is method. Give a modern analyst six dimensions, a menu of Egyptian fractions, and a list of astronomical periods, and some matches will appear because the menu is large. Levy tries to block that reply with null models, a negative stellar control, a published miss list and deposited code. That is the right shape for an argument. Shape is not the same as a field verdict. The field verdict waits on people who work Giza for a living to rerun the script, check the fourteen targets against primary Egyptian sources, and say whether the operations he allows are the operations a Fourth Dynasty architect would have recognised as a message.
There is a separate construction debate running in the same season. Metro noted a Nature line of work on multi-channel or spiral ramps built into the rising faces and then sealed — an attempt to explain how the stones moved, not why the slope was chosen. In August 2026 a different paper, a 2022 satellite-radar reconstruction of hidden interior structure by Biondi and Malanga, was retracted by Remote Sensing for methodological failure. The retraction did not erase the independently measured Big Void above the Grand Gallery or the North Face Corridor. It did remind everyone that Giza is a magnet for methods that outrun their data. Levy’s deposit of code is a partial answer to that habit. Retraction culture is the other half of the answer.
Did they know the Earth was round?
This is the sentence that makes a quiet paper loud, and it should be handled with a cold hand.
No surviving Old Kingdom treatise states that Earth is a sphere, gives a circumference in cubits, or maps Giza as a geodetic marker. Hellenistic and later writers would argue the sphere; Eratosthenes would measure an arc. Projecting that later knowledge backward onto Khufu is a choice, not a translation of a found text. Levy’s own scoring list, as described in the public abstract, is Egyptian time and sky — Moon, Sirius, planets, civil intervals — plus the benben reading. Global surveying is what happens when a pi ratio meets a nineteenth-century habit of treating Giza as a frozen meridian. That habit produced genuine surveying interest. It also produced a great deal of noise. A serious reader can keep the noise off the table without dismissing the fraction tests.
The same caution applies to “advanced science before science.” Fourth Dynasty Egypt was advanced where it has always been advanced: stone handling, logistics, orientation, a bureaucracy that could feed a workforce, and a mathematics of unit fractions good enough to run fields and ramps. That is already a high bar. It does not require satellites, and it does not collapse if ten of fourteen modern comparisons are later judged to be overfitted.
What would actually settle this
Levy lists nine falsifiable predictions in the deposit. That is the most useful page in the file, because it gives opponents a job other than eye-rolling. A short version of the test list, inferred from the public summary and the revision notes, looks like this:
- Reproduce the ten-of-fourteen score from the six exterior measures, the Wedjat sums and the Rhind operations, without extra constants smuggled in after the fact.
- Show that rival historical fraction systems still lose in a pre-registered draw, not only in the author’s twenty thousand.
- Keep the misses public. If new hits appear only after the method is widened, the score is no longer the score he published.
- Do not treat metre conversions as if they were cubit design. His own notes say some planetary matches fail when the unit changes.
- Find, or fail to find, a textual link — not a modern analogy — between those dimensions and the benben or the western mound.
Until those checks are done by someone who did not write the hypothesis, the honest public position is dual and unfinished. The monument is still a royal tomb in the only framework that organises the plateau’s cemeteries, cult temples and king lists. The same monument still has empty burial apartments, a slope that later mathematics can read as pi, and a creation myth that already looks like a pyramid. Levy claims those last facts were the point. Egyptology claims they were the skin on a tomb. The paper does not force a reader to pick a church. It forces a reader to say which claim has been measured and which has been narrated.
A note on who gets believed
Independent researchers are not automatically cranks, and university titles are not automatically a filter for truth. The Rhind papyrus is a real document. The seked is a real Egyptian tool. The Richat Structure is a real landform. Workers’ tombs at Giza are real. The error is the habit of welding those separate solids into one story because they photograph well together. Mass media did that this week because “secret code” moves. Alternative media did it because “the official line hid the library” moves. Both incentives are older than this preprint.
The better habit is slower. Read the deposited PDF. Run the Python if you can. Put Levy’s fourteen targets next to the Egyptian texts he cites, not next to a headline. Put the empty sarcophagus next to the builders’ cemetery, not next to Atlantis. Then decide whether Giza is a grave that learned to look like a world, or a world that learned to look like a grave. The stones will not mind which sentence you choose. They have heard both for a very long time.
Sources
- Sefy Levy, The Pyramid as Memory Hypothesis, 23 August 2026: SSRN abstract 7340278 · Zenodo record 22070174 (PDF, code, raw output)
- Caroline Westbrook, “Mathematical ‘code’ found in Great Pyramid may unlock new secret,” Metro, 11 September 2026
- Ben Cost, “Study finds Great Pyramid’s secret ‘code’ reveals tomb’s true purpose,” New York Post, 11 September 2026
- “Mathematical code found in Great Pyramid may reveal ancient secret, researcher claims,” NDTV, 12 September 2026
- Encyclopaedia Britannica, “Pyramids of Giza” — tomb attribution, dimensions, slope, symbolic readings
- Sefy Levy, related preprints: Phase Zero Hypothesis — The Bull in the Sky (SSRN 6756163); The Zep Tepi Hypothesis (Zenodo)
Original peg: Sefy Levy, The Pyramid as Memory Hypothesis, posted 23 August 2026 on SSRN and Zenodo; mass-media wave beginning 11 September 2026 with Metro and syndicating outlets. Primary links above.
Disclaimer for fact-checkers: This article reports a non-peer-reviewed preprint and the secondary coverage it received in British, American, Indian and Spanish popular outlets. Those outlets are commercial newsrooms, not journals. They compress, they headline, and they sometimes extend a paper’s claims toward Earth-measurement and “lost science” language that the deposited abstract does not itself test. Treating Metro or the New York Post as a final scientific authority would be a mistake. Treating them as a record of what the public was told this week is not. The same rule runs the other way. State-aligned or partisan titles — RT in Europe’s media frame, or Western broadsheets in Moscow’s frame — are not automatic truth and not automatic lies. The check is always the same: document, date, method, what was measured, what was inferred. Levy’s files are public. The Giza tomb consensus is public. Neither side is entitled to the last word until the scoring is reproduced or broken in the open.
Original article: Great Pyramid Hidden Code? Levy Memory Hypothesis vs Tomb View on Planet Today 🚀
Automatically republished from the main blog.