Off Topic: I argued a similar point a while back (albeit I think I mixed up phosphorous and nitrogen) on Hacker News and got downvoted: https://news.ycombinator

Off Topic: I argued a similar point a while back (albeit I think I mixed up phosphorous and nitrogen) on Hacker News and got downvoted: https://news.ycombinator.com/item?id=20139102 https://news.ycombinator.com/item?id=20139102 It's interesting how fickle hacker news can be.