I saw this info: A German university professor lost two full years of academic work after a single setting change inside ChatGPT permanently erased his saved conversations and project folders, with no recovery option available from OpenAI, according to a report published by Nature. Marcel Bucher, a professor of plant sciences at the University of Cologne, had been using ChatGPT Plus as a central workspace for a wide range of professional tasks. These included drafting grant proposals, preparing lectures and exams, revising academic papers, organizing teaching materials, and analysing student responses. Over time, the chat history and project folders inside ChatGPT effectively became an informal archive of his ongoing research and teaching output. The data loss occurred when Bucher attempted to disable ChatGPT’s data consent option to see whether the service would continue to function without retaining his information. Instead of merely limiting data usage, the action immediately deleted all of his chats and emptied his project folders. There was no warning explaining the consequences, no confirmation dialog that clearly stated the deletion was irreversible, and no undo option. The interface simply refreshed to a blank workspace. Initially assuming it was a glitch, Bucher checked multiple browsers, devices, and networks. He cleared caches, reinstalled applications, and even reverted the setting change, but nothing restored the missing content. Partial backups existed for some materials he had manually saved elsewhere, but large portions of his work were lost permanently.