One hundred years after H. G. Wells visited the future in The Time Machine, Freeman Dyson marshals his uncommon gifts as a scientist and storyteller to take us once more to that ever-closer, ever-receding time to come. The stories he tells - about "Napoleonic" versus "Tolstoyan" styles of doing science; the coming era of radioneurology and radiotelepathy; the works of writers from Aldous Huxley to Michael Crichton to William Blake; Samuel Gompers and the American labor movement - come from science, science fiction, and history. Sharing in the joy and gloom of these sources, Dyson seeks out the lessons we must learn from all three if we are to understand out future and guide it in hopeful directions. Whether looking at the Gaia theory or the future of nuclear weapons, science fiction or the dangers of "science worship, " seagoing kayaks or the Pluto Express, Dyson is concerned with ethics, with how we might mitigate the evil consequences of technology and enhance the good.