This article is from March 2012. It has been posted twice before to HN to little...

		Helianthus on Feb 20, 2014 \| parent \| context \| favorite \| on: Scaling to millions of simultaneous connections (2... This article is from March 2012. It has been posted twice before to HN to little impact. http://hn.algolia.com/#!/story/forever/prefix/0/Whatsapp%20s... (Correction: the presentation is from 2012; I don't know when it was posted online.)