An Eschatological Taxonomy

What do we mean when we talk about the “end of the world?” It’s a term that get thrown around a bit too often among a variety of futurist-types, whether talking about global warming, nanofabrication, or non-friendly artificial intelligence. “Existential risks” is the lingo-du jour, referring to the broad panoply of processes, technologies and events that put our existence at risk. But, still, what does that mean? The destruction of the Earth? The end of humankind? A “Mad Max” world of leather-clad warriors, feral kids, and armed fashion models? All are frightening and horrific, but some are moreso than others. How do we tell them apart?

http://www.openthefuture.com/2006/12/an_eschatological_taxonomy.html