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This was on HN about 3 months ago: http://news.ycombinator.com/item?id=2979458 http://news.ycombinator.com/item?id=2979458

• llambda 15y ago
  Michael suggested it for over-break reading, so a retrospective seemed in order. :)
• cobrausn 15y ago
  It needed to be on HN at least twice.