"Where data was once a mysterious binary blob, it has now become something ordinary people can read and author because it's text. With XML, ordinary people have the ability to craft their own data, the ability to shape and control data. The significance of this shift is difficult to overstate, for not only does it mean that more people can access data, but that there will undoubtedly be more data to access. We are on the verge of a data explosion. One ignited by XML."
Charles F. Goldfarb's XML Handbook, Fifth Edition, ISBN 0-13-049765-7, 2004, Foreword by Jean Paoli, 1998, p. xlix