In the AI Era, Writing Is Becoming A New Class Divide

author: Paul Graham, editor: Mr. Y

Introduction

As of today, April 4, 2026, the A.I. tsunami has swept across humanity, drastically altering the patterns of civilizational evolution and technological development. It can help people generate an essay in seconds, but it can also gradually erode their most core competitive advantage - the ability to think and express themselves independently.

In October 2024, an article by renowned Silicon Valley investor and legendary programmer Paul Graham sparked a huge and profound response among global intellectual elites. A year and a half has passed, and his predictions are now turning true with the rapid iteration of AI technology.

Why Paul Graham? And why should we take his prediction seriously?

If you are familiar with entrepreneurship and high technology, you should have heard of Y Combinator (YC). This incubator, known as a "startup factory", has invested in and incubated numerous internet giants such as Airbnb, Dropbox, and Reddit. Paul Graham is the founder of YC.

Besides founding Y Combinator, he invented the ARC programming language and published numerous essays and books. His professional background spans several distinct fields, including philosophy, computer science, and art.

Paul Graham

As a top programmer, successful entrepreneur, and profound thinker, he has consistently been at the forefront of technological change, renowned for his unique and insightful observations of future trends. The warnings issued by someone with both deep knowledge of artificial intelligence and a strong humanistic background are particularly worthy of our reflection.

So, what exactly did Graham warn us about? Let's start with his first article - a short but explosive piece titled "Writes and Write-Nots" - in which he makes a bold prediction about the future of writing, thinking, and human intelligence itself.

Writes and Write-Nots

I'm usually reluctant to make predictions about technology, but I feel fairly confident about this one: in a couple of decades there won't be many people who can write.

One of the strangest things you learn if you're a writer is how many people have trouble writing. Doctors know how many people have a mole they're worried about; people who are good at setting up computers know how many people aren't; writers know how many people need help writing.

The reason so many people have trouble writing is that it's fundamentally difficult. To write well you have to think clearly, and thinking clearly is hard.

And yet writing pervades many jobs, and the more prestigious the job, the more writing it tends to require.

These two powerful opposing forces, the pervasive expectation of writing and the irreducible difficulty of doing it, create enormous pressure. This is why eminent professors often turn out to have resorted to plagiarism. The most striking thing to me about these cases is the pettiness of the thefts. The stuff they steal is usually the most mundane boilerplate - the sort of thing that anyone who was even halfway decent at writing could turn out with no effort at all. Which means they're not even halfway decent at writing.

Till recently there was no convenient escape valve for the pressure created by these opposing forces. You could pay someone to write for you, like JFK, or plagiarize, like MLK, but if you couldn't buy or steal words, you had to write them yourself. And as a result nearly everyone who was expected to write had to learn how.

Not anymore. AI has blown this world open. Almost all pressure to write has dissipated. You can have AI do it for you, both in school and at work.

The result will be a world divided into writes and write-nots. There will still be some people who can write. Some of us like it. But the middle ground between those who are good at writing and those who can't write at all will disappear. Instead of good writers, ok writers, and people who can't write, there will just be good writers and people who can't write.

Is that so bad? Isn't it common for skills to disappear when technology makes them obsolete? There aren't many blacksmiths left, and it doesn't seem to be a problem.

Yes, it's bad. The reason is something I mentioned earlier: writing is thinking. In fact there's a kind of thinking that can only be done by writing. You can't make this point better than Leslie Lamport did:

If you're thinking without writing, you only think you're thinking.

So a world divided into writes and write-nots is more dangerous than it sounds. It will be a world of thinks and think-nots. I know which half I want to be in, and I bet you do too.

This situation is not unprecedented. In preindustrial times most people's jobs made them strong. Now if you want to be strong, you work out. So there are still strong people, but only those who choose to be.

It will be the same with writing. There will still be smart people, but only those who choose to be.

From Warning to Mechanism: How Does Writing Actually Shape Your Thinking?

Graham's prediction in "Writes and Write-Nots" is striking - but it raises an immediate follow-up question. If writing really is thinking, and if losing the ability to write means losing the ability to think, then we need to understand the mechanism. How, exactly, does writing shape your thinking? What is it about the process of putting words on a page that makes your ideas sharper, more complete, and more honest?

Graham answers this question in depth in another essay, titled "Putting Ideas into Words".

Where the first article sounds the alarm, this second one opens the hood and shows you the engine. It reveals why writing isn't just a way to communicate ideas you already have - it is, in fact, the very process through which idea formation itself.

His core insight is this: writing is not merely recording the thoughts already in your head; writing itself is an irreplaceable and supremely effective way of thinking. You might believe you understand a topic well enough, but the moment you try to write down those thoughts, you quickly discover that your understanding is far less clear and thorough than you imagined.

Graham also offers a powerful metaphor: writing is like a mirror that reveals the true face of your thinking - not the flattering version you carry around in your head. When you write, you must put yourself in the shoes of an unfamiliar reader, anticipating their confusion, bridging their gaps in understanding. Through this relentless process of drafting, testing, and revising, your thinking becomes clearer, your expression more precise, and your communication skills are enhanced in a way that no other method can match.

This resonates deeply with my own experience - though not with writing, but with something seemingly unrelated: singing.

What you think in your brain and what you actually express are often very different. I enjoy listening to music and humming songs in my spare time. After listening to a song several times, I can remember it clearly in my mind, as if the song is playing on a speaker right next to my ear. But if I haven't actually sung a song much, when I try to sing it out loud, I often either get stuck on either the lyrics or the melody - it's never as smooth as it sounded in my brain.

The songs I can hum fluently are the ones I used to sing often, some of which were the very first songs I learned in my life - for example, "Aiyo Mama".

During the summer vacation after second grade, I stayed at my grandmother's house and sang this song to her for the entire summer. I didn't sing or listen to this song for nearly 30 years afterward, but recently, when I suddenly remembered this song that carries my childhood memories, I could still sing it as lightly and accurately as I did that summer.

The parallel to writing is clear: just as a song only truly lives in your voice when you've sung it again and again, an idea only truly lives in your mind when you've written it out, tested it, and refined it. Passive familiarity - whether with a melody or a concept - creates the illusion of mastery. Only active expression reveals the truth.

With that in mind, let's now read Graham's full essay and see exactly how this process works.

Putting Ideas into Words

Writing about something, even something you know well, usually shows you that you didn't know it as well as you thought. Putting ideas into words is a severe test. The first words you choose are usually wrong; you have to rewrite sentences over and over to get them exactly right. And your ideas won't just be imprecise, but incomplete too. Half the ideas that end up in an essay will be ones you thought of while you were writing it. Indeed, that's why I write them.

Once you publish something, the convention is that whatever you wrote was what you thought before you wrote it. These were your ideas, and now you've expressed them. But you know this isn't true. You know that putting your ideas into words changed them. And not just the ideas you published. Presumably there were others that turned out to be too broken to fix, and those you discarded instead.

It's not just having to commit your ideas to specific words that makes writing so exacting. The real test is reading what you've written. You have to pretend to be a neutral reader who knows nothing of what's in your head, only what you wrote. When he reads what you wrote, does it seem correct? Does it seem complete? If you make an effort, you can read your writing as if you were a complete stranger, and when you do the news is usually bad.

It takes me many cycles before I can get an essay past the stranger. But the stranger is rational, so you always can, if you ask him what he needs. If he's not satisfied because you failed to mention x or didn't qualify some sentence sufficiently, then you mention x or add more qualifications.

Happy now? It may cost you some nice sentences, but you have to resign yourself to that.

You just have to make them as good as you can and still satisfy the stranger.

This much, I assume, won't be that controversial. I think it will accord with the experience of anyone who has tried to write about anything nontrivial. There may exist people whose thoughts are so perfectly formed that they just flow straight into words. But I've never known anyone who could do this, and if I met someone who said they could, it would seem evidence of their limitations rather than their ability.

Indeed, this is a trope in movies: the guy who claims to have a plan for doing some difficult thing, and who when questioned further, taps his head and says "It's all up here". Everyone watching the movie knows what that means. At best the plan is vague and incomplete. Very likely there's some undiscovered flaw that invalidates it completely. At best it's a plan for a plan.

In precisely defined domains it's possible to form complete ideas in your head. People can play chess in their heads, for example. And mathematicians can do some amount of math in their heads, though they don't seem to feel sure of a proof over a certain length till they write it down.

But this only seems possible with ideas you can express in a formal language. [1] Arguably what such people are doing is putting ideas into words in their heads. I can to some extent write essays in my head. I'll sometimes think of a paragraph while walking or lying in bed that survives nearly unchanged in the final version. But really I'm writing when I do this. I'm doing the mental part of writing; my fingers just aren't moving as I do it. [2]

You can know a great deal about something without writing about it. Can you ever know so much that you wouldn't learn more from trying to explain what you know? I don't think so. I've written about at least two subjects I know well - Lisp hacking and startups - and in both cases I learned a lot from writing about them. In both cases there were things I didn't consciously realize till I had to explain them. And I don't think my experience was anomalous. A great deal of knowledge is unconscious, and experts have if anything a higher proportion of unconscious knowledge than beginners.

I'm not saying that writing is the best way to explore all ideas. If you have ideas about architecture, presumably the best way to explore them is to build actual buildings. What I'm saying is that however much you learn from exploring ideas in other ways, you'll still learn new things from writing about them.

Putting ideas into words doesn't have to mean writing, of course. You can also do it the old way, by talking. But in my experience, writing is the stricter test. You have to commit to a single, optimal sequence of words. Less can go unsaid when you don't have tone of voice to carry meaning. And you can focus in a way that would seem excessive in conversation. I'll often spend 2 weeks on an essay and reread drafts 50 times. If you did that in conversation it would seem evidence of some kind of mental disorder. If you're lazy, of course, writing and talking are equally useless. But if you want to push yourself to get things right, writing is the steeper hill. [3]

The reason I've spent so long establishing this rather obvious point is that it leads to another that many people will find shocking. If writing down your ideas always makes them more precise and more complete, then no one who hasn't written about a topic has fully formed ideas about it. And someone who never writes has no fully formed ideas about anything nontrivial.

It feels to them as if they do, especially if they're not in the habit of critically examining their own thinking. Ideas can feel complete. It's only when you try to put them into words that you discover they're not. So if you never subject your ideas to that test, you'll not only never have fully formed ideas, but also never realize it.

Putting ideas into words is certainly no guarantee that they'll be right. Far from it. But though it's not a sufficient condition, it is a necessary one.

The New Class Divide: Why Writing Determines Your Future

Now let's return to the title of this article: In the AI era, writing is becoming a new class divide. After reading both of Graham's essays, the title should be self-evident.

Since writing is the most important thinking tool, and since it is a basic consensus today that your thinking ability determines your success and ultimately the wealth and social standing you can achieve - then it follows, inevitably, that writing will also determine the social class you can reach in the future AI era.

This is not merely a Western perspective. Another top figure in the startup and investment world, Li Xiaolai - a pioneer of Bitcoin and the knowledge industry in China - recently made a strikingly similar assertion: the main work of future production will be reading and writing.

Thus, visionaries from both the East and West unanimously agree: writing will become the most important professional activity for humans in the age of AI.

The irony is exquisite. At the very moment when AI makes writing seem unnecessary, writing becomes more important than ever - not as a means of producing text, but as a means of producing thought. Those who keep writing will keep thinking. Those who stop will gradually, imperceptibly, lose the capacity to do so. And they won't even notice - because, as Graham reminds us, unwritten ideas feel complete. It's only the act of writing that reveals they're not.

So the question facing each of us is not whether AI can write for you. Of course it can. The question is: what happens to your mind when you let it?

Have you thought about how you're going to navigate this new ocean of civilization and live out this uncertain life?

Write it down.

Notes

[1] Machinery and circuits are formal languages.

[2] I thought of this sentence as I was walking down the street in Palo Alto.

[3] There are two senses of talking to someone: a strict sense in which the conversation is verbal, and a more general sense in which it can take any form, including writing. In the limit case (e.g. Seneca's letters), conversation in the latter sense becomes essay writing.

It can be very useful to talk (in either sense) with other people as you're writing something. But a verbal conversation will never be more exacting than when you're talking about something you're writing.