In the year 2125, a cataclysmic event occurs: an inexplicable process causes the supercomputer, which stores all the world's data—all knowledge spanning thousands of years—to fail. This means it is irretrievably lost in an instant. Everything digitally stored is gone; access to books, atlases, teaching materials, films, music recordings, documents, recipes, paintings, CDs, and the internet is no longer possible. Only the knowledge stored in people's minds remains. Students at the Philippinum Gymnasium in Marburg explored this scenario. In their texts, they describe how humanity can nevertheless survive and reinvent itself—and how knowledge returns. A unique project in collaboration with Marburg's oldest high school.