Over the past few years I've had an uncomfortable sense that someone,or something, has been tinkering with my brain, remapping theneural circuitry, reprogramming the memory.My mind isn'tgoing-so far as I can tell-but it's changing. I'm not thinking the way I used tothink. I can feel it most strongly when I'm reading. Immersing myself in a bookor a lengthy article used to be easy. My mind would get caught up in thenarrative or the turns of the argument, and I'd spend hours strolling throughlong stretches of prose. That's rarely the case anymore. Now my concentrationoften starts to drift after two or three pages. I get fidgety, lose the thread, andbegin looking for something else to do. The deep reading that used to comenaturally has become a struggle.