I can no longer remember the precise distinction between the uncertainty principle and the observer principle, but one way or another, I’ve started to detect a feedback loop involving the Year in Reading series and the reading life it purports to document. When I dashed off my first entry, in 2005 (can that be right?), it was purely in the spirit of a report. But by 2012, even in January, February, and March, I found myself picking up a given book and asking: Is this a contender for the series? Is there any chance this is going to be the best thing I read this year? And if not, back onto the shelves it went.