MethodsofRationality Yudkowsky

Harry Potter and the Methods of Rationality (HPMOR) is a fanfiction of Harry Potter a.k.a. "the canon" written by Less Wrong, a pen name of Eliezer Yudkowsky.

The story was first published on on 2/28/2010. The 122th and last chapter was published on March 14th, 2015. There is a mirror site at containing chapters and author's note, fan art, information on science and rationality, and a sign-up section for update notifications. The site also contains links to the story in other formats such as podcasts, iTunes podcasts, and bookstyle format for PDF, EPUB and MOBI. There are also links to discussion in the reviews section at, at TVTropes, and at the Less Wrong site.


For words of God see Word of God.


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