If memory serves (it's been a minute since I read it) the Voice basically accompanies that particular character until nearly the end of the book...and then starts talking to another character, >!relatively shortly before the outbreak of WWIII at the end of the book!<. Could it be similar cases of schizophrenia or whatnot caused by everything? Sure. Could it be the Devil? I can see it.

If anything, my main goal is to work on the pile of (20-25?) physical books I currently have classified as "depressing but informative." Then I can work on the other pile(s) of largely thrift-store pickups. Maybe ping-pong between them to balance the doomscrolling out. And somewhere after that is the near-infinite ebook pile...