PROPHECIES : Do you think is possible to predict the end of the world?

In Galicia we believe in "meigas", but should we believe in prophecies? Some of these prophecies say that the end of world is coming soon...and when we realise wars increasing, AIDS spreading, and now economic recesion , what we want to know is, are we going to last until next week? The most famous prophecies were written 400 years ago by the french mystic Michel de Notredame, better known as Nostradamus ; he wrote 942 verses and, although these prophecies are not very explicit, Nostradamus' supporters say that he predicted the assassination of John F. Kennedy, Second World War, the war in the Persian Gulf and even the 11-S...should we take them seriously? what do you think about it?