Past discussions on this classic include:

2017 https://news.ycombinator.com/item?id=13983212

2017 (a bit) https://news.ycombinator.com/item?id=13670971

2016 (a bit) https://news.ycombinator.com/item?id=12402313

2015 https://news.ycombinator.com/item?id=9445692

2015 (a bit) https://news.ycombinator.com/item?id=9623813

2013 https://news.ycombinator.com/item?id=5241220

2009 https://news.ycombinator.com/item?id=584557

2008 https://news.ycombinator.com/item?id=337371 ("Wow, I first read this when I was in high school. It's still being updated?")