The Medium Is the Message: The Form Does More Than the Content
Writing's real consequence was not that people could record things — it was that law could outlive its author. Every medium does work that no individual message controls.
Topic
Media Theory
The Overton Window: The Difference Between Wrong and Unsayable
Ideas that are ordinary today were once outside the range of what a respectable person said aloud. Mostly the facts didn't change — the boundary of the sayable did, and it moves by repetition.
Social Media: A Feed Is a Decision, Not a Pipe
Early networks showed you what your contacts posted, in order. A modern feed is a ranked selection made on your behalf — and what it optimises for explains most of the arguments about it.