Yeah, I don't normally link to Wikipedia here. But I came across this recently when looking something up and it really sucked me in. Having spent 25+ years of my life reading this series, some of the books 5–10 times, I consider myself to have a fairly intimate knowledge of the story. But the Wikipedia entry introduced some concepts that were new to me right from the start: > The series is set in an unnamed world that, due to the cyclical nature of time as depicted in the series, is simultaneo…