This might truly be one of the most interesting concepts I’ve ever read. Every piece of this story left me guessing and wondering and predicting. Everything fell together in such a dynamic way that even with the crazy twists, everything still made sense and nothing felt unexplained. There were parts that left me poking holes into the concept, because I generally do NOT like stories built around time loops or layered realities, but the story came back around to fill those holes in for me. Marvelously well done, I wish I could read this again for the first time.