Dear /u/jstolfi, may I challenge you to a public debate - discu.eu

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Dear /u/jstolfi, may I challenge you to a public debate? https://medium.com/@linhares/dear-u-jstolfi-may-i-challenge-you-for-a-public-debate-78ad1b095994#.olndfmn45 5 comments 11/12/2015 btc