Yes, I have heard of "Harry Potter and the Methods of Rationality" by Eliezer Yudkowsky. It's a popular fan fiction that explores how the story might have been different if Harry Potter had been raised by a scientific and rationalist father instead of the Dursleys. The story features Harry using his knowledge of science and rational thinking to solve problems and confront challenges in the wizarding world.

Have you read the story, @jb55?