LVL
Tier lists originated in video game culture pretty much. It’s a way to try to subjectively rank things within a game by its viability. The s tier thing comes from Japan I believe, where in some academic cases they give an S grade for excellent performance. In the context of tier lists the reason there might be a S+ tier is because some characters might be really really good and are in S tier but some characters are just way better than everyone else and are in a league of their own.
No, I would say that in recent memory it was just that book that was like that for me. Without spoiling anything I think it had to do with the book being kind of grounded (within the sci-fi setting it set) and then it just wasn’t.
And yeah I could definitely understand losing interest in that way. You just kind of lose the connection to the book through lack of interaction with it. Not sure if it would work but it could help to go back a couple of chapters and start reading from there to kind of remember what you were reading and feeling earlier.
Patriots, Traitors and Empires: The Story of Korea’s Fight for Freedom by Stephen Gowans is a pretty good book. Been a while since I read it but it was very eye opening and a good read.