" In this world, progress is for our descendants alone. They will have more of a chance than we did. All the beautiful things ever seen on our world have, of course, already been seen—are being seen at this instant and will always be seen—by our descendants, and by their doubles who have preceded and will follow them. Scions of a finer humanity, they have already mocked and reviled our existence on dead worlds, while overtaking and succeeding us. They continue to scorn us on the living worlds from which we have disappeared, and their contempt for us will have no end on the worlds to come. "

― Eliot Weinberger , An Elemental Thing