An interesting article by Mark Steyn.

Most people reading this have strong stomachs, so let me lay it out as baldly as I can: Much of what we loosely call the Western world will not survive this century, and much of it will effectively disappear within our lifetimes, including many if not most Western European countries. There'll probably still be a geographical area on the map marked as Italy or the Netherlands--probably--just as in Istanbul there's still a building called St. Sophia's Cathedral.