Related from 2016: https://news.ycombinator.com/item?id=12938727

2015: https://news.ycombinator.com/item?id=9746051

Related a bit more generally:

2017 https://news.ycombinator.com/item?id=15932739

https://news.ycombinator.com/item?id=14947065

2016 https://news.ycombinator.com/item?id=13239632