## All Spaces Have a Grammar I've been thinking about why certain environments change the way I behave. How a cathedral can quiet a room without anyone saying a word. How an Apple Store makes your hands reach for things. No one explains the rules. The space does. Every built environment works this way. The spaces we inhabit are constantly teaching us how to use them. Where to move, where to pause, what is allowed and what's off limits. Architects have understood this forever. A high ceiling opens people up, a low ceiling makes them hunch, long corridors pull people forward, soft corners invite them to stay. All of this happens before you think about it. The physical environment is running a kind of program on you. My cousin is a designer, and one of his friends once said to me: "You know, most people move through designed environments like water through a pipe." I've thought about that sentence a lot. And once you see it, you can't unsee it. Everyone has that one café that makes them want to linger, or knows of a co-working space that just...doesn't work. Every space comes packaged with its own set of instructions. I've started to think of them as a kind of grammar. And like every grammar, the grammar of space isn't neutral. They are decisions; they're made by someone, for some purpose, and we respond to them whether we know about it or not. I focus on the grammar of physical spaces here, because this is where the pattern is easiest to see. But everything designed has grammar. Products, interfaces, newsfeeds, all have a kind of grammar. Once you start to look, you start seeing them everywhere. For most of history, the spaces and grammars we operated in were written by people. An architect, a designer, a boss, a parent. The intentions weren't always good, but they were all very human. You could, in principle, understand them. But I do wonder about how this will change with AI, which can now generate interfaces, design our environments, and test thousands of variations at a time, selecting for whatever metric it's pointed at. The grammars we inhabit seem like they are being written faster than any human can audit. Which means the gap between the environments that are shaping us and our ability to understand them is widening. I wanted to write about this because I think three things have come into focus for me recently. First, we're spending more time in environments we didn't choose and can't see. The average person spends four to seven hours a day on screens. That's hours inside architectures designed by people you'll never meet, optimizing for outcomes you never agreed to. And unlike a building, where you can at least see the walls, our digital environments shapeshift as we use them. The feed you see is not the feed I see. Each of us exists inside a grammar that is increasingly personalized, A/B tested, and continuously rewritten by systems measuring our every hesitation. The cathedrals we're walking through are rebuilding themselves in real time based on what makes us want to stay. Second, if you've ever had a strange feeling of being vaguely manipulated, that is simply what a grammar feels like when you can’t read it. It might register as a kind of low-grade uneasiness after an hour spent on Instagram. It's the way you meant to check one thing, and twenty minutes vanished. A meeting that left you drained, even though nothing "bad" happened. Something is happening to you, but there's nothing to point at. No one lied, no one made a demand. The environment just... shaped you. And because you can't name the mechanism, you blame yourself. You think maybe that you lack discipline, or perhaps boundaries, or clarity. But very often, the problem isn't you. It's that you're *responding correctly*, but to a grammar that you haven't learned to see. The third is this: you're not just being shaped. You're shaping. All the time. The way you've arranged your home; that's grammar other people read when they walk in. The way you start a meeting, that's grammar your team absorbs and mirrors. Most of us inherited our grammar from somewhere, and now we're transmitting it. We're designing our environments constantly. We're just not doing it on purpose. But we could. People used to write more of their own grammars. We built our own furniture, arranged our own spaces, set the norms of our own households. The grammar was local, even when it was flawed. Now most of us inherit it from platforms and corporations. We've become fluent readers but we remain amateur writers. But we can learn to write again. And once you see this, a simple question becomes available. Whenever you feel that vague sense that you're being moved by something you can't name, don't blame yourself first. Ask instead: what does this environment want from me? What do I want from it? You won't always get a clear answer. But the question itself is a kind of waking up. Just by asking, you put yourself back in relation to the design, rather than just inside it. The cathedral was built to make you feel small, but it also made you feel part of something sacred. It worked because its grammar was honest and because you could understand *why* it was built that way: to show you the scale of the divine. The design functioned as a kind of open contract. You walk in, you see the high arches, you understand the deal, and you choose whether or not you want to participate in the awe. The digital systems we build today (and the AI-driven environments of tomorrow) don't seem to extend that same courtesy. They don't want you to feel anything specific for your own sake; they want you to _be_ something specific for the system's sake (engaged, retained, converted). And because the walls are hidden, it is very hard to tell how you're being moved. You become less of a guest in a space, and more a variable in an equation. That distinction is everything. I'm not saying we should go back to a world of only cathedrals, in fact I’m sure we wouldn't want to. But for those of us who design these systems, ML engineers, design engineers, our goal shouldn't be to move people more efficiently. It should be to offer an open contract again. Aim to build environments that are honest about what they want from the people inside them. For everyone else, the task is simpler but no less urgent: you don’t have to reject every design in order to reclaim your agency; you just have to learn to notice it, and begin to ask questions back.