NESTED CONTENTS. “The content’ of any medium is always another medium. The content of writing is speech, just as the written word is the content of print, and print is the content of the telegraph.” (Marshall McLuhan, 1964). The content of the Internet is computing and the content of computing is science and the content of science is mathematics and writing and the content of mathematics and writing is speech.”
https://link.springer.com/chapter/10.1007/978-3-030-59177-9_13