Jaron Lanier

In fact, the dynamics of the Web, as the artist and computer scientist Jaron Lanier observes in another new book, are encouraging “authors, journalists, musicians and artists” to “treat the fruits of their intellects and imaginations as fragments to be given without pay to the hive mind.”

Mr. Lanier, 49, astutely points out in his new book, “You Are Not a Gadget,” of how online collectivism, social networking and popular software designs are changing the way people think and process information, a question of what becomes of originality and imagination in a world that prizes “metaness” and regards the mash-up as “more important than the sources who were mashed.”