This admittedly has been posted before[1][2], but I found the form of presentation such a great way of teaching that I wanted to share it again. [1]: https://n

This admittedly has been posted before[1][2], but I found the form of presentation such a great way of teaching that I wanted to share it again. [1]: https://news.ycombinator.com/item?id=19672039 https://news.ycombinator.com/item?id=19672039 [2]: https://news.ycombinator.com/item?id=9170100 https://news.ycombinator.com/item?id=9170100