Ancient Philosophers’ Hidden Writings Rediscovered from ‘Unreadable’ Scrolls

A remarkable ancient philosophical manuscript has resurfaced from a papyrus scroll, previously deemed unreadable due to the catastrophic eruption of Mount Vesuvius in 79 AD. For the first time, researchers have harnessed AI to extract the entire remaining text from an ultra-high-resolution 3D scan of the scroll without the need for physical unrolling.

The scrolls were excavated from the library at Herculaneum, buried alongside Pompeii approximately 2,000 years ago. Since the library’s discovery in 1752, scholars have endeavored to read these charred relics resembling lumps of charcoal. However, attempting to physically open them poses a risk of irreversible damage, and the ink is nearly indistinguishable from the charred papyrus to the naked eye.

Beginning in 2023, the Vesuvius Challenge employed a particle accelerator to scan multiple scrolls, sharing the results with a collaborative online community. This collective effort culminated in AI software capable of digitally opening the scroll and detecting remnants of ink, facilitating easier reading of titles, authors, and excerpts.

This time, the research team unveiled a 1.5-meter-long text inscribed in 22 columns on a 2-centimeter-wide core, with its outer layer having been meticulously removed over centuries for reading.

“I found a record that I attempted to open multiple times but could not decipher,” states Federica Nicolaardi from Federico II University of Naples, Italy. “Some fragments remain from earlier attempts to physically open it, revealing only a few visible letters. Yet through virtual opening, we are reshaping the historical narrative surrounding this papyrus.”

Scrolls co-founders of the Vesuvius Challenge, such as Brent Shields from the University of Kentucky, refer to this scroll as the “Impossible Scroll.” This scroll represents just one among hundreds of texts that withstood early papyrus scholars’ simplifications.

Shields explains that the combination of high-resolution imaging, reaching down to 2 micrometers, and extensive scanning data enables the discovery of lengthy passages within scrolls that were once thought unreadable.

Currently, the AI models adapt to specific scrolls based on variations like ink composition. Shields expresses optimism that with enough exposure, the AI will eventually uncover ink within these ancient texts. “We are leveraging large-scale language models for this task,” he adds, “yet we have not fully transitioned this technology for scroll analysis.”

The uncovered texts delve into themes of ethics, art, and humanity, with numerous references to Stoic doctrines. This aligns with second-century B.C. literature and suggests that Chrysippus, the Greek Stoic philosopher, is likely the author, as noted by Nicolaardi.

Chrysippus is regarded as a foundational figure in Stoicism, yet nearly all of his works have been lost to time. According to classical scholars like Thomas Coward from the University of Bristol, we mainly recognize him through others’ often critical works.

“Accessing the original text, rather than fragments or interpretations by others, is pivotal,” he states, comparing this breakthrough to the rediscovery of lost works by luminaries like Isaac Newton or Albert Einstein that only exist through references from other scientists.

Among Chrysippus’ critics was Philodemus, a lesser-known Epicurean philosopher of the first century, whose work resides within the Library of Herculaneum, financed by its presumed owner, Lucius Calpurnius Piso Caesoninus, Julius Caesar’s father-in-law.

Another scroll deciphered through scanning has been recognized as About God, Volume 8, an expanded version of Philodemus’s previously known work, About God, Volume 1, which is part of a series of eight texts.

This extraordinary discovery signifies a major leap forward in computational techniques related to image processing and digital unwrapping. Nicholas Freer, a professor at Newcastle University, UK, believes this technology holds the potential to “transform our understanding” of the ancient world.

“These advancements are crucial because hundreds of scrolls remain unopened,” he emphasizes. “What we’re witnessing is not merely a single groundbreaking moment, but the onset of a long-term recovery process that could span decades.”

For Shields, who has devoted decades to developing digital unwrapping technology, this discovery marks a pivotal transition from focusing solely on the technology’s efficacy to emphasizing the scrolls’ content and historical significance.

“What the public will care about now are the names that emerge, the scrolls’ ages, and their philosophical insights,” he remarks. “While we aim to automate tasks, our ultimate goal is to resurrect the voices of the past.”

If Shields has any regrets, it’s that numerous scrolls were lost before he could access them. “What was excavated in 1752, particularly the original scrolls, I believe we will soon be reading,” he states, “as they were among the easiest to decipher.”

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