Earth technology was so old-fashioned that instantly its obsolescence was realized, our economic system must fall apart.
"Long Ago, Far Away"
William Fitzgerald Jenkins AKA Murray Leinster
The assertion of the rapid obsolescence of ships of war will be dwelt upon, in the hopes of contravening it.
"Lessons of the war with Spain and other articles"
Alfred T. Mahan
The historical novel is a good kind, good friends, a marvellous good kind: and it has the advantage over the pure novel of manners that it is much less subject to obsolescence, if it be really well done; while it can practically annex most of the virtues of that novel of manners itself.
"The English Novel"
George Saintsbury