Link - _Harry Potter & The Methods of Rationality_

I've been reading _Harry Potter and the Methods of Rationality_, a fan fiction retelling the Harry Potter stories in an alternative universe where Harry Potter has been raised by rationalists and so decides to apply the scientific method to the study of magic. He also decides that science is the correct tool for bringing Draco Malfoy over to the side of "Light".

Chapter 22, "The Scientific Method" pleases me greatly:
http://www.fanfiction.net/s/5782108/22/Harry_Potter_and_the_Methods_of_Rationality