Why Alien Life Would be our Doom - The Great Filter
By Kurzgesagt – In a Nutshell
February 1, 2018 at 08:00AM
via Kurzgesagt – In a Nutshell's YouTube Videos http://www.youtube.com/watch?v=UjtOGPJ0URM
"Finding alien life on a distant planet would be amazing news - or would it? If we are not the only intelligent life in the universe, this probably means our days are numbered and doom is certain."