There’s a generation now, here on the island, which grew up entre deux guerre, as there was in the 1930s: after the Cold War, and before the Pervasive War, looking for a new way out of the old years. Towards the end of the 20th century — sold New Labour, sold Cool Britannia. Pop culture. Y2K the biggest fear. Borrowed cool (and not just the Wallpaper* elite). But the Millennium didn’t end the 20th century, any more than January 1 1900 was the start of it. C20 got off to either a very early start (Alan Moore’s take on Jack …