Leebaert asked a dozen technologists and strategic planners from the computer world to peer a decade ahead. The result is fascinating and, happily, readable. Many of the issues posed are by now familiar-for instance, the role of the mainframe when a thousand encyclopedias' worth of information can be stored "for the cost of a ranch house in Minneapolis." Less familiar is the image of interaction between people and machines that is so continuous it could no more be turned off than our nervous system. And, Leebaert asks, what of our very definitions of image and reality: "What will happen if the data we transmit become as complex as ourselves?"