Submitted many times, to very little discussion. Multiple sources, you may care to look at the stories from them all:

https://news.ycombinator.com/item?id=15833907 (4 comments)

https://news.ycombinator.com/item?id=15832229

https://news.ycombinator.com/item?id=15831290

https://news.ycombinator.com/item?id=15829715 (1 comment)

https://news.ycombinator.com/item?id=15829334

https://news.ycombinator.com/item?id=15828221 (2 comments)

https://news.ycombinator.com/item?id=15823925

https://news.ycombinator.com/item?id=15823925

https://news.ycombinator.com/item?id=15821482 (1 comment - a spoiler)

https://news.ycombinator.com/item?id=15820538 (1 comment)

https://news.ycombinator.com/item?id=15819652 (2 comments)

https://news.ycombinator.com/item?id=15819127 (1 comment)

https://news.ycombinator.com/item?id=15818693