Like Morse code and Telegraphy in the 19th century, a simple technology changed the world when the Web came along. Going further down the stack, TCP/IP is said to be ”simple enough that you can run it over two cans and a piece of string”. Similarly, a web page is, at its simplest, just a piece of text sent down a wire. Riffing on that, this page converts itself to Morse code, both visually and using the Web Audio API. There's also a fair bit of CSS play going on.