When one is the type of writer who cares about the meaning of the historically specific setting, the history itself is not something that I would call backdrop. It's not window dressing for a timeless relationship about love and betrayal. For me, the setting and the specific history are active co-agents with me in trying to form the novel.
I am a rereader. Quality is variety if you wait long enough. Barthes, Baudelaire, Benjamin, Celine, Duras, Faulkner, Fitzgerald, Melville: There is so much to revisit. 'Ingrid Caven,' by Jean-Jacques Schuhl, is always in rotation. I used to read 'Morvern Callar,' by Alan Warner, every year - I adored that book.
I don't believe that intelligence can be reduced to a number, frankly. But I can see how doing exactly that produces a useful sorting mechanism in our society in order to separate children into categories of promising and doomed. The tests seem arbitrary and without real scientific value and yet have lasting consequences.