I’ve been reading fanfiction for the first time in several years and it’s all Jen McCreight’s fault.
The premise for this fic is that Harry Potter is hyper-rational and it is, essentially, pointing out how logically flawed the Harry Potter books are. With love, obviously. It’s surprisingly enjoyable, so if you’re a skeptic and an HP fan, I recommend it. I’ve gotten to Chapter 19…
Now, for the first time, he was up against the prospect of a mystery that was threatening to be permanent. If Time didn’t work by acyclic causal networks then Harry didn’t understand what was meant by cause and effect; and if Harry didn’t understand causes and effects then he didn’t understand what sort of stuff reality might be made of instead; and it was entirely possible that his human mind never could understand, because his brain was made of old-fashioned linear-time neurons, and this had turned out to be an impoverished subset of reality.