User talk:2A02:587:5404:5A8C:A009:1631:38AF:809E

June 2020
Hello, I'm Tarl N.. An edit that you recently made to List of unsolved problems in physics seemed to be a test and has been removed. If you want to practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! Tarl N. ( discuss ) 19:38, 23 June 2020 (UTC)
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