No, rather, Aunt Petunia married an Oxford professor in biochemistry, rather than that waste of space Vernon. Leading to Harry being raised in a household that encourages rational thought and scientific enquiry. Plus, Harry himself is kind of a genius. Which is why the fic is called Harry Potter and the Methods of Rationality. And I recommend you read it anyway, because I believe it is one of the greatest HP fics - and stories in general- that has been written.