Previous discussion <a href="https://news.ycombinator.com/item?id=5170765" rel="nofollow">https://news.ycombinator.com/item?id=5170765</a> and also "why you should be excited" <a href="https://news.ycombinator.com/item?id=5181149" rel="nofollow">https://news.ycombinator.com/item?id=5181149</a>