The decline of Europe is not inevitable, despite how much Americans love to joke/proclaim that the continent is doomed to become an open-air museum. Sure, it's possible that things have to get worse before they get better, but believing that "it's over" is just loser talk. It's never over, but the old world also won't recover by itself...
It’s a web framework. Directly, probably none. However there may well be plenty of sites/web servers using it.