4 & 5 – The Efficient Market Hypothesis & The Fundamental Attribution Error
Harry Potter and the Methods of Rationality
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Harry Potter estimates the value of the gold coins in his vault
Harry Potter estimates the value of his gold coins in his vault using a Fermi calculation and discovers he has around forty thousand galleons, equivalent to two million pounds sterling. He contemplates the wealth in the wizarding world and wonders if things are generally expensive.
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