User talk:2A00:23EE:2048:79B1:656C:B891:39A0:904E

April 2024
Please do not add or change content, as you did at Fermi 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. David J Johnson (talk) 10:01, 2 April 2024 (UTC)