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A Reluctant Convert

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Science  11 Aug 2006:
Vol. 313, Issue 5788, pp. 752-753
DOI: 10.1126/science.313.5788.752

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Like most physicists, Joseph Polchinski never much liked the idea that the existence of life had anything to do with the nature of the universe--until he and a collaborator discovered that string theory itself provides evidence for the so-called anthropic principle. (Read more.)