The Voynich Manuscript: The Book No One Can Read | CASE 008

A book written by hand on parchment. Plants no one has securely identified, circles of stars, figures in pools… and on every page a script no one has managed to read. For more than a century, people have announced that it was finally deciphered. None of those proposals has convinced specialists. In this case we separate what has been measured (the parchment, the ink, the old letters) from what has been proposed. We go through the attempts to read it, from the "microscopic letters" of 1921 to the proposals of 2018 and 2019; Lindemann and Bowern's statistical analysis; the five hands identified by Lisa Fagin Davis; and Michael Greshko's Naibbe system (2025), which reproduces certain properties of the text but does not decipher the manuscript. And we end with the question of the case: what would a translation have to prove to be believable? CHAPTERS 0:00 Cold open 0:55 What can be measured 2:03 The book's journey 3:28 The pictures that don't explain 4:24 A script that is too orderly 5:16 Five hands 5:51 Those who said they could read it 7:16 Three hypotheses 7:56 Naibbe: dice, cards and signs 9:05 The test 9:51 The book stays shut SOURCES · Beinecke Library, Yale University: "Beinecke Cipher (Voynich) Manuscript", Beinecke MS 408, and digital collection · Yale Library: "Alumna joins long search to unlock enigmatic 15th-century manuscript" (2024) · L. F. Davis: "How Many Glyphs and How Many Scribes? Digital Paleography and the Voynich Manuscript", Manuscript Studies 5:1 (2020) · C. Bowern & L. Lindemann: "The Linguistics of the Voynich Manuscript", Annual Review of Linguistics 7 (2021) · L. Lindemann & C. Bowern: entropy comparison with modern and historical texts, arXiv 2010.14697 (2020) · M. A. Greshko: "The Naibbe cipher", Cryptologia (2025), and the author's materials on GitHub · University of Arizona: radiocarbon dating of the parchment (2009) · Multispectral images of the first page: L. F. Davis (2024) Manuscript pages: Beinecke Rare Book and Manuscript Library, Yale University (Beinecke MS 408). All other images are original illustrations and recreations; people appear only as faceless silhouettes. The radiocarbon date refers to the parchment, not to the writing. #VoynichManuscript #Mystery #History #Cryptography #TheLostTheory