Previous discussion:<p>Two weeks ago: <a href="https://news.ycombinator.com/item?id=25476266" rel="nofollow">https://news.ycombinator.com/item?id=25476266</a><p>Two years ago: <a href="https://news.ycombinator.com/item?id=18854854" rel="nofollow">https://news.ycombinator.com/item?id=18854854</a><p>Three years ago: <a href="https://news.ycombinator.com/item?id=17047348" rel="nofollow">https://news.ycombinator.com/item?id=17047348</a>