Previously posted a few times. These two seem to have the most discussion going: https://news.ycombinator.com/item?id=13643025 https://news.ycombinator.com/ite

Previously posted a few times. These two seem to have the most discussion going: https://news.ycombinator.com/item?id=13643025 https://news.ycombinator.com/item?id=13643025 https://news.ycombinator.com/item?id=18235798 https://news.ycombinator.com/item?id=18235798