I saw Eternity the other nightTwenty-one years after its publication in Analog, here is Marc Stiegler's story The Gentle Seduction: nanotechnology and the hours, the days, the years, and the billennia.
Like a great Ring of pure and endless light
All calm as it was bright;
And round beneath it, Time, in hours, days, years,
Driven by the spheres.
Like a vast shadow moved, in which the world
And all her train were hurled.
— From The World by Henry Vaughan