https://lifeboat.com/blog/2007/01/apocalypse-scale Safeguarding Humanity Mon, 05 Jun 2017 03:31:11 +0000 hourly 1 https://wordpress.org/?v=6.3.1 https://lifeboat.com/blog/2007/01/apocalypse-scale#comment-802 Wed, 28 Mar 2007 14:50:55 +0000 http://lifeboat.com/blog/?p=33#comment-802 I would add “light-cone destroyed” under X

]]>