2016 https://news.ycombinator.com/item?id=10872233
2015 https://news.ycombinator.com/item?id=8989411
10872233 - 8989411 = 1882822
2016 https://news.ycombinator.com/item?id=10872233
2015 https://news.ycombinator.com/item?id=8989411