Regarding your first point, not sure if author covered it, but in Google Content... | Hacker News

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		davkap92 on April 6, 2016 \| parent \| context \| favorite \| on: 20 lines of code that beat A/B testing (2012) Regarding your first point, not sure if author covered it, but in Google Content Experiments with multi bandit approach cookies are stored, so user who sees variation b will keep seeing b while the experiment is running

mplewis on April 6, 2016 [–]

This is the approach every good AB testing service/framework uses.

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