Occasionally I will listen to a radio call-in show run by an evangelist named Harold Camping... more out of curiosity than anything else. He is an odd bird. He teaches that the Church Age is over (and so all current churches are ruled by Satan). He's not a Jehovah's Witness but he teaches that Jesus is Michael. And most importantly, he teaches that the world will end on May 21, 2011. Initially I thought his ideas were harmlessly bizarre, but the other night I heard him advising a mother with a young child to not bother making college or career plans for their child's future because they won't have one. He's not just eccentric but irresponsible.
It just reminds me again to appreciate the fact that the Quranic descriptions of the end-times, however vivid, are not full of the sorts of tempting descriptions as the Revelation of St. John or the book of Daniel which would encourage folks to presumptuously predict the end of the world (see also the number of the beast). I'm not saying that Muslims never make eschatological missteps. But I would argue that the Bible encourages this sort of behavior more than the Quran does.