User talk:219.91.202.221

August 2022
Hello, I'm DVdm. Your recent edit(s) to the page Twin paradox appear to have added incorrect information, so they have been reverted for now. If you believe the information was correct, please cite a reliable source or discuss your change on the article's talk page. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. DVdm (talk) 08:56, 29 August 2022 (UTC)

Please do not add or change content, as you did at Twin paradox, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. DVdm (talk) 09:00, 29 August 2022 (UTC)