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sixes_and_sevens comments on [FINAL CHAPTER] Harry Potter and the Methods of Rationality discussion thread, March 2015, chapter 122 - Less Wrong Discussion

6 Post author: Gondolinian 14 March 2015 04:00PM

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Comment author: CronoDAS 14 March 2015 08:32:18PM *  13 points [-]

For the record: The "mysterious" thing about the "smile" in the Mona Lisa painting is that it looks like a smile when you see it with peripheral vision but doesn't when you look at it directly. The effect doesn't work nearly as well when you're looking at a tiny picture of it, though.

Comment author: sixes_and_sevens 15 March 2015 08:58:51PM 7 points [-]

This finally answers the question of why a shear transformation of the Mona Lisa appears on the Wikipedia page for eigenvalues and eigenvectors.