. . . "A collection of essays by leading American thinkers which describe what they think life will be like in the United States in fifty years." . . . . . . . . . . . . . "Imagine : what America could be in the 21st century : visions of a better future from leading American thinkers" . "Imagine : what America could be in the 21st century : visions of a better future from leading American thinkers"@en . . . "Forecasts" . "Forecasts"@en . . . . . "2000 - 2099" . . "Estats Units d'Amèrica" . . "Segle XXI Previsions" . . "United States" . . . . "Característiques nacionals nord-americanes." . .