I'm listening to an fan audiobook of a fan fiction sci fi novel I've read a couple times now and it might be in my top five all time favorite novels. In many ways it is very much in the tradition of Isaac Asimov, Frank Herbert, Dan Simmons, Orson Scott Card. But also in the tradition of Richard Feynman, Erwin Schrodinger, and Albert Einstein. Written by Eliezer Yudkowsky, an artificial intelligence researcher at the Machine Intelligence Research Institute, it brings in science, math, sociology, and philosophy (logic, game theory, ethics, epistemology). It's also insanely funny, particularly if you know the material the story is based on.
Don't judge. Have an open mind. The name of the book is Harry Potter and the Methods of Rationality. It reinterprets the story of the original series from the premise that Harry was raised as an only child by his aunt Petunia and an Oxford professor in a loving home rather than in the abusive home of the original. His religion was the scientific method. He's the most precocious 11 year old that ever existed, smarter than most adults, and the lightning bolt scar on his head is a bigger influence on his personality than originally intended by Rowling.
If you have any appreciation for Harry Potter at all, and like science, math, philosophy, and sociology I highly recommend it.
Book in pdf and web formats