This is awesome!<p>I've never seen it and it's by far the best explanation I've ever seen for how these work.<p>Thank you for sharing this here.
Most active prior submit, 140+ points:<p><a href="https://news.ycombinator.com/item?id=15122031" rel="nofollow">https://news.ycombinator.com/item?id=15122031</a>