3892d8c8-e407-4ff1-be7e-e9c94f52a364 131 B

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  1. id: 3892d8c8-e407-4ff1-be7e-e9c94f52a364
  2. url: http://ask.metafilter.com/224344/What-one-book-could-give-me-a-new-useful-superpower