--- id: PRG-0003 title: The Highlighter Is a Surveillance Device kicker: Instruments of the inner life captured: 2026-06-12T16:08:00Z status: live author: Field desk readingTime: 3 summary: You think you are marking the page for yourself. You are marking it for whoever reads the page after you, and someone always reads the page after you. tags: [attention, marking, journaling, instruments] --- A highlighter does one thing: it declares that some words matter more than the words around them. It is an instrument of attention, which is to say an instrument of confession. Show me what a person highlighted and I will show you what they were afraid of forgetting. ## The mark is a signal When you highlight, you are not preserving information. The information was already there. You are leaving a record of your own attention, a second document layered over the first, addressed to a future reader you assume is yourself. > Every annotation is a letter to a stranger who happens to share your handwriting. The apparatus loves annotation more than it loves text. Text is what everyone could see. The marks are what only you could make, and what only you can be identified by. ## Mark anyway None of this is an argument against the highlighter. It is an argument for knowing what the instrument does. Mark the page. Confess to it freely. Just keep the page somewhere that answers to you.