Chapter 4 - The Efficient Market Hypothesis

A young Harry learns of the Wizarding economy and makes a few withdrawals.  Harry Potter and the Methods of Rationality was written by Eliezer Yudkowsky as a work of fan-fiction inspired by J.K. Rowling's Harry Potter series, and as a means to promote rational thinking.

A trip to Diagon Alley, and a revealed past. Harry Potter and the Methods of Rationality was written by Eliezer Yudkowsky as a work of fan-fiction inspired by J.K. Rowling's Harry Potter series, and as a means to promote rational thinking.

A Hogwarts Professor comes for a visit. Beliefs are reevaluated. Harry Potter and the Methods of Rationality was written by Eliezer Yudkowsky, all kudos go to him. 

A mysterious letter with emerald green ink has arrived at the Verres-Evans household, rousing argument and curiousity. Harry Potter and the Methods of Rationality was written by Eliezer Yudkowsky, all kudos go to him.