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Liar’s Paradox

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I added a page to my web site about the Liar’s Paradox. I felt it belonged on my web site rather than my blog because it deals with logic and matters of interest to recreational mathematicians. Besides hosting my blog, my web site has a few articles about mathematical curiosities and a couple of puzzles. Check it out.

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evolution logic mind probability theology

Presumed Intelligence

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Suppose you are walking along a beach and you come across these lines scrawled in the sand:

Our vegetable love would grow
Vaster than empires and more slow

What would you think?

  1. That you had received a message from God
  2. That some human had been musing on Andrew Marvell’s poetry
  3. That some random process of wind and sea and sand crabs had accidentally produced marks resembling words

Certainly, it is possible to believe any of these. Yet I think most people would assume that the lines had been written by some human agent.

Now suppose you investigated and found that no one had visited that stretch of beach for days. Suppose you were able to show beyond doubt that the lines could not have been written by a human being. Then what would you believe? If the lines had to have been written by a non-human agent, which is more likely: God or nature?

I confess I don’t know. As a theist, I’m not even sure that a distinction between the two is significant. (In other words, if I were able to witness the words being formed by wind and sea and sand crabs, I don’t think I would find it any less supernatural.) I think I would cling to the notion that a human agent must be involved. After all, why would God quote Marvell?

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