Minds and Brains

MU

This picture was drawn by Douglas Hofstadter for his classic dialogue “Prelude…Ant fugue” in his masterful Godel, Escher, and Bach. In the dialogue he asked a simple, yet highly illuminating question: what does the picture say?

On the top level, it says “MU”, alluding to the Zen parable of Joshu and the dog. In this parable, a monk asks Joshu “does a dog have Buddhe-nature?” Joshu, with immediate fervor, replies “MU!”, which basically means that Joshu denied the legitimacy of the question. He “unasked” the question. The relevance of the parable is made clear when one attempts to answer the above question: what does the picture say? One cannot simply assert that it says “MU”, although on the top and bottom levels it says as much.(You can’t see it in the above copy, but the individual letters are made out of tiny iterations of “mu”). That would be too…

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