Comment by dang

Thanks! Macroexpanded:

20 lines of code that beat A/B testing (2012) - https://news.ycombinator.com/item?id=11437114 - April 2016 (157 comments)

20 lines of code that beat A/B testing every time - https://news.ycombinator.com/item?id=4040022 - May 2012 (147 comments)