The Great Pyramid has guarded its secrets behind millions of tons of stone, but a new paper claims its greatest message may have been hiding in plain sight. Independent researcher Sefy Levy argued that carefully chosen measurements on the monument’s exterior form a numerical system designed to survive long after its builders were gone. Rather than being carved into a wall, the alleged code is said to be embedded in the pyramid’s height, base, sloping sides and overall shape. Levy claimed those dimensions produce striking matches with the cycles of the moon, the calendar and planets visible to the naked eye. He believes the numbers were intended to preserve the Egyptians’ knowledge of mathematics, time and the heavens for eternity. 'The pyramid was not built to last forever because it contained something valuable,' Levy wrote. 'It was built to last forever because it was something valuable.' The paper, posted in August, concluded with its boldest claim: 'The pyramid is not a container for knowledge. It is the knowledge, made stone.' The interpretation remains highly speculative, as the paper has been posted on SSRN and Zenodo but has not undergone independent peer review.

Levy has acknowledged that the numerical matches were initially found after the measurements and target values were known. Mainstream Egyptology regards the pyramid as a funerary monument built for Khufu, around 4,500 years ago. Its empty granite sarcophagus, mortuary complex and royal cemetery support that function, but do not prove Khufu was buried there. No ancient text says its dimensions encode astronomy. To uncover the alleged pattern, Levy examined the pyramid’s key measurements and divided them using fractions employed by ancient Egyptian scribes. According to the paper, the answers repeatedly come close to numbers important in mathematics and astronomy.

One simple calculation produces 27.5, a near match for the roughly 27.55-day interval between successive lunar perigees, when the moon reaches its closest point to Earth. Another produces exactly 70, which Levy connected to the roughly 70-day interval between the heliacal setting and rising of Sirius, when it was hidden by the sun’s glare. Egyptian tradition also associated about 70 days with mummification, although the match proves no deliberate connection. Levy claimed other calculations come close to the repeating cycles of Saturn, Jupiter, Venus and Mars as they move across Earth’s sky.

He also argued that the pyramid’s proportions produce figures resembling pi and the golden ratio. Together, the theory suggests the builders transformed the pyramid into a permanent stone record of their understanding of time, space and the heavens. To test whether similar patterns would appear by chance, Levy generated 100,000 hypothetical Old Kingdom-style pyramids. These were not complete designs: a program varied their base widths from 75 to 440 royal cubits and their slopes across an ancient range.

The same test was applied to every model, and Levy reported that 2,419, about 2.4 percent, scored as many matches as the Great Pyramid or more. He argued that this makes coincidence less likely, but it remains his own simulation rather than independent confirmation. One stricter comparison was inconclusive. The numerical code is only one part of Levy’s much more radical argument about the monument’s purpose. Levy’s larger theory begins with an Egyptian creation tradition in which the first land rose from a world covered in water. The tradition in which the first land rose from a chaotic, dark water world is known as the Heliopolitan creation myth, centered around the primeval mound called the benben.

He believes the pyramid was built to represent the primordial mound from which creation began. Levy then made a much more controversial claim, suggesting the story may have been based on a real place where some distant ancestors of the Egyptians could have lived. His candidate is the Eye of the Sahara, a huge ring-shaped formation in Mauritania with raised land at its center. Thousands of years ago, when the Sahara was greener and wetter, it may have been surrounded by water.

The theory suggests that communities left as the region dried and eventually travelled east toward the Nile, taking memories of their old home with them. Levy believes later generations recreated that memory at Giza. The pyramid represented the hill, while a harbor and lost Nile branch placed water at the complex’s edge. He interprets the westward causeways as symbolically connecting the setting sun, the dead and the proposed ancestral homeland. In other words, Levy argues that the Great Pyramid preserved a story about where some of Egypt’s distant ancestors may have come from. There is no direct evidence connecting the Eye of the Sahara to Giza or proving that this journey happened.