The title "post-apocalyptic programming" made me think, if there is an apocalypse and we have to start programming from scratch again, surely we will need some

The title "post-apocalyptic programming" made me think, if there is an apocalypse and we have to start programming from scratch again, surely we will need some NAND gates to make a CPU and surely the first language we need to create is Forth. And this article does talk about creating a Forth from scratch. Excellent choice for post-apocalyptic programing.