PPS Sorry for screwed up formatting in links. Edits do not go through for some reason - here's a better formatted version:

[1] https://twitter.com/shanley

[2] https://twitter.com/ashedryden

[3] https://news.ycombinator.com/threads?id=codahale

[4] https://twitter.com/shanley/status/451779905475186690

[5] https://twitter.com/shanley/status/446375139488186368

[6] https://twitter.com/shanley/status/446376327218622464

[7] https://twitter.com/jacobian/status/416719991963009024