[lallysingh]

It's a meta joke

[penagwin]

It's hilarious because it's also a "semi"-decent method on how to learn knew topics in general.

[kawera]

And goes well with the article[1] we discussed yesterday[2] !

[1] https://billwadge.wordpress.com/2016/01/08/b-before-a/

[2] https://news.ycombinator.com/item?id=19608883