Thirty years ago, Kenneth Hudson, the grand old figure of the European museum world, said that there are chiefly two qualities that will be demanded of the museums in the future: pluralism of interest and the flexibility of imagination. Today, we cannot but admit that he was right. Even if the diversity of definitions of museum is bigger than ever, there is no doubt that modern museums want to live up to the expectations from new groups of visitors, from cultural policy and a changing society in general. Many museums have left the traditional role of embodying merely a national collective memory and have become a kind of commentators on the present; the museum of the 21st century is supposed to explain the complexity of the world and what i...