HN links Mar 14, 2017

https://news.ycombinator.com/item?id=13870199

https://news.ycombinator.com/item?id=13869807

https://news.ycombinator.com/item?id=13869484

https://news.ycombinator.com/item?id=13867590

https://news.ycombinator.com/item?id=13857046

https://news.ycombinator.com/item?id=13856917

https://news.ycombinator.com/item?id=13867227

https://news.ycombinator.com/item?id=13865584

https://news.ycombinator.com/item?id=13850693