I’m taking a break from homework to ponder the state of the world and especially the loss of Madeleine L’Engle, the second death this year (following Kurt Vonnegut’s) of an extraordinary author of vaguely-science-fiction books. I didn’t really know anything about L’Engle, which made the obituaries and appreciations feel strange. But of course, I read her books during that curious age that is the target of the “young adult” section of bookstores; I suppose her books may have been scattered betwee…