AI in Five, Fifty and Five Hundred Years -- Part Three -- Five Hundred Years

Always in motion is the future." We've spread out towards the stars and colonized the solar system, from settlements orbiting the glittering rings of Saturn, to sprawling cities on the red hills of Mars built by nano insects invisible to the eyes. When their big bellies are filled to bursting, they rocket along invisible superhighways, delivering He3 to energy hungry fusion micro-reactors that power the interplanetary economy. Beyond the rings, deep space mining ships release clouds of drones like baby spiders into the wind and they digest asteroids hurtling in the endless void. The drones fuel an unprecedented building boom on nearly every planet circling the sun, as city after city goes up on barren rocks long hostile to organic life. The fastest transformations are taking place on Mars. The people who immigrated to Mars generations ago don't need oxygen at all.