End of the World!

Boasts this website of doomsday future nano-bots ability to breakdown atoms and create other substances: "Our DNA- and RNA-molecules do it all the time!" This scenario has the world turned into grey goo in 72 hours. But it's only one of many end-of-days theories cataloged on the EXIT MUNDI website. Reminds me of the vast image out of Spiritus Mundi mentioned in "The Second Coming" by Yeats.