User talk:2603:7000:2807:1F8F:DD59:52AE:8671:9463

March 2024
Hello, I'm Creffel. I noticed that you added or changed content in an article, List of unsolved problems in physics‎, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Thank you. Creffel (talk) 00:34, 25 March 2024 (UTC)