User talk:Claytonhossack2

February 2019
Hello, I'm Horst Hof. 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 more 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! Horst Hof (talk) 11:09, 27 February 2019 (UTC)