Paul Graham: How to Make $1 Billion
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Paul Graham: How to Make $1 Billion
Paul Graham, the “Godfather of Silicon Valley,” Reveals the Underlying Logic Behind Billion-Dollar Wealth
Navigating Web3 tides with focused insightsAuthor: Paul Graham
Paul Graham’s latest essay, “How to Earn a Billion Dollars,” appears on the surface to respond to the political debate over whether it is possible—ethically—to earn $1 billion. But what makes this piece truly valuable is how clearly it lays out the fundamental logic behind startup wealth.
In Graham’s framework, $1 billion isn’t a mystical number—it’s the product of two variables: growth rate and how long that growth can be sustained.
If a company consistently builds products users genuinely love—and actively recommend to friends—it stands a chance of achieving exponential growth. If that growth occurs within a sufficiently large market, the founder’s wealth accumulation becomes a mathematical outcome—not a moral puzzle.
This essay is also highly instructive for investors. After all, early valuations of many great public companies ultimately hinge on the same set of questions:
- Does it truly solve a strong, unmet need?
- Do users love it enough?
- Is growth self-propagating? Is the market large enough?
- How long can the growth curve sustain itself?
So this essay isn’t just about “how to become a billionaire.” It’s about how to identify exponentially scaling companies—and why linear thinking routinely underestimates truly high-growth assets.
Below is the full translation.
How to Earn a Billion Dollars
June 2026
This essay is based on a speech I delivered at the Oxford Union.
Since this is clearly the “Future Prime Ministers’ Club,” I’d like to address an issue more politicians should understand: how people become billionaires. Even if you don’t plan to enter politics, I hope this proves useful. Those who don’t become prime ministers can instead become billionaires.
I know something about this topic because 21 years ago, Jessica and I founded an organization called Y Combinator. If you haven’t heard of Y Combinator, it’s something like a hybrid between a venture capital firm and a school for founders. Since its founding in 2005, we’ve invested in roughly 6,500 companies.
Founding a successful startup is the most common path to becoming a billionaire. So, in a sense, for the past 21 years I’ve been training people to become billionaires. To date, around 30 of them have already achieved that milestone—and many more are well on their way.
So you can imagine my shock last month when a U.S. politician declared, “It’s impossible to earn a billion dollars.” It felt like a figure skating coach hearing someone say, “The triple axel is impossible.” Of course it’s possible—difficult, yes, but possible.
Of course, she didn’t mean it was literally impossible to become a billionaire. Obviously it is possible. She wasn’t discussing the distinction between income and capital gains, nor was she raising an accounting issue. Her point was that no one could amass such wealth without doing something wrong—without cheating in some way.
A few days later, I spoke with a founder I’d invested in. As usual when I meet founders, I began by asking about her growth rate. She said it was 93% last month. I pointed out that meant her net worth was also growing at 93% per month. She was getting rich at an astonishing pace—yet she hadn’t done anything wrong. Her startup grew so fast simply because users loved what she built. From her own experience, she could feel just how wrong that politician was. She wasn’t exploiting anyone—in fact, the opposite was true. Her startup grew so quickly because she and her co-founder worked relentlessly to delight users, who then started recommending the product to friends—triggering exponential growth.
Later that day, I posted about her case online, and someone replied: “Growing from a few million dollars at 93% per month is entirely different from becoming a billionaire.”
I suspect many would agree. But in fact, this claim is not only incorrect—it’s revealingly incorrect.
So I’d like to ask a favor: please pull out your phone and do a quick calculation. I know it feels contrived—but I promise it’s worthwhile. What I’m asking you to do is the single most common calculation I make as an investor—and going through it will give you real insight into the nature of startups.
If we interpret “a few million” conservatively as $2 million, then her company needs to grow 500-fold for her to become a billionaire. So let’s calculate how many months it takes for something to grow 500-fold at a monthly rate of 93%.
That means computing the logarithm base 1.93 of 500. The easiest way is to type log(500, 1.93) directly into Google’s search bar. Enter it correctly, and the result is approximately 9.45.
That’s how many months it takes to go from $2 million to $1 billion at a 93% monthly growth rate. A few million dollars and 93% monthly growth aren’t remotely distant from $1 billion—they’re just nine and a half months apart.
Now you understand why my first question to founders is always about growth rate.
But I don’t want anyone accusing me of using unrealistic numbers—so let’s try a more conservative growth rate. What happens at 15% per month? That’s not unusual at all. I regularly encounter startups growing at 15% per month.
If your revenue grows 15% per month, what will it be after five years? To compute this, raise 1.15 to the 60th power (since five years equals 60 months). So go back to Google and type 1.15^60. The answer is approximately 4,384—meaning your startup’s revenue will be 4,384 times larger than today. If you’re currently earning $10,000 per month, you’ll earn about $44 million per month—or $526 million annually—five years from now. At that point, holding a typical founder’s equity stake, you’ll be a billionaire.
In reality, growth rates often slow slightly over time. A highly successful startup might grow faster than 15% per month in Year One, slower than 15% per month by Year Four—but the final result remains broadly similar. If you found a startup in your early twenties, becoming a billionaire before age thirty is absolutely possible. Difficult—but possible.
I asked you to do this calculation yourself because now you grasp one key reason people launch startups. Exponential growth feels like magic—it produces seemingly impossible outcomes. And precisely because of that, some politicians distrust it. They don’t understand the mathematics of exponential growth, so when they see someone become “impossibly wealthy,” they assume cheating must have occurred.
But now, having done the math yourself, you understand that one doesn’t need to cheat to become a billionaire. You’ve seen firsthand that only two numbers matter: growth rate and how long that growth lasts. If earning $1 billion honestly were impossible, which of those two numbers would be impossible? Monthly growth of 15% is certainly possible—startups achieve it regularly. As for how long you can sustain that rate, it depends on market size. Clearly, to grow 4,000-fold, there must be at least 4,000-fold demand in the market—but that’s all you need. How could cheating possibly expand market size?
If you only intend to become prime minister, you may stop reading here. We’ve already demonstrated that earning $1 billion is indeed possible—because it hinges on just two numbers: one that startups routinely achieve without cheating, and another that cheating cannot possibly influence.
But if you truly want to become a billionaire, let’s dig deeper—especially into the first number: growth rate. To sustain steady monthly growth, you must build something so good that users spontaneously tell their friends about it. In fact, this is another reason I always ask founders about growth rate first: growth reveals whether they’ve built the right thing.
So specifically—how do you build something people love enough to tell their friends about?
The challenge—and the brilliance—of a market economy is this: it’s hard to build something customers want but don’t yet have. Once a new, satisfiable need emerges, people rush to fulfill it. So you must uncover a need others haven’t yet recognized.
How do you do that?
By feeling that need yourself.
You’re young. Young founders should typically build things they themselves want. You lack sufficient experience to reliably anticipate others’ needs—but your own needs are exceptionally valuable, because they foreshadow future demand. You’re at the age where people begin adopting new technologies. What you and your friends start using today will be ubiquitous in ten years. Since your intuition about others’ needs is usually a poor signal—and your own needs are a uniquely valuable signal—you should generally follow the latter. Build what you and your friends want.
Building what you and your friends want doesn’t mean you must build consumer products. Perhaps you and your friends are molecular biologists, and there’s something cool involving DNA that everyone else has overlooked. Perhaps you and your friends love drones. The idea doesn’t need broad initial appeal—it just needs to excite you and your friends.
Don’t worry about the second number—the market size. Since you’re a harbinger of future demand, the market will grow. And expansion into adjacent markets is always possible. All you need is a beachhead in the landscape of unmet needs—and then scale outward from there.
How do you get ideas like that?
The answer is one of the most counterintuitive truths about startups—and startups are full of counterintuitive truths. The best way to get great startup ideas isn’t to go looking for startup ideas. Consciously hunting for ideas makes you overly cautious. You’ll discard outliers. Because the best startup ideas often sound terrible at first. If you’re deliberately searching for ideas, you’ll reject them—and that’s precisely why they remain undiscovered.
Imagine how awful Apple, Facebook, or Airbnb sounded at inception. How many people wanted their own computer? How could a company profit by letting college students peek at each other online? Who would pay to sleep on an air mattress on a stranger’s floor? We know what these ideas became, so rewriting history is easy. But I vividly remember how awful Facebook and Airbnb sounded at first. We invested in Airbnb—even though we thought the idea was terrible. We invested solely because we liked the founders.
So how do you find startup ideas without searching for them?
Work on projects with friends.
That’s how the best startups begin. They don’t even start out intending to be companies—they’re just things people build because they seem cool. Apple, Google, and Facebook all began this way. None were designed as companies from the outset.
This method works precisely because of what I mentioned earlier: you foreshadow future demand. So if you simply build random things that strike you as cool, what you produce is anything but random.
This is one of those cases where your unconscious mind knows more than your conscious mind. Any project that genuinely excites you—“This would be a really cool thing!”—no matter how absurd it sounds, has a high probability of leading to a strong startup idea. Whatever you build, however absurd, couldn’t possibly be more absurd than Justin.TV—a startup we invested in back in 2006. Its premise? A guy named Justin Kan strapped a camera to his head and live-streamed everything he did. Yet the company thrived—and you’ve likely heard of it, though it later rebranded as Twitch.
The key to building a successful startup is deep understanding of a specific user group—deep enough that you can build exactly what they truly want. If you’re young, you can—and should—use a simple tactic: build for yourself. You understand yourself. But this is just one instance of a broader rule: only deep user understanding enables you to build things users love enough to share with friends—and only that kind of sharing unlocks the exponential growth essential to startup success.
There are other paths to wealth beyond startups—some of which do involve exploiting others. But startups remain the most common route to genuine wealth. If you want to build a successful startup, the key isn’t exploitation—it’s empathy. What do users truly want? What can you do to meaningfully improve their lives? This empathy is what we look for in founders—and what we cultivate in those we admit.
How people get rich in your society is one of the most important questions for understanding that society. Don’t let ideology, movies, or historical examples centuries old dictate your view. Observe the world around you—and see how things actually happen. If you aim to achieve this yourself, you’ll inevitably be forced to understand how it works. So I’m not overly concerned about you. I’m concerned about future prime ministers. You need to remember this talk—so let me summarize the core insights.
Two factors determine how large a startup can become—and thus how wealthy its founder can become: growth rate and how long that growth can be sustained. You achieve the first factor by building something users love enough to tell friends about. You achieve the second by operating in a large market. If you grow exponentially within a large market, your startup becomes valuable—and as a shareholder, you become wealthy. You don’t need to cheat for this to happen. As long as you keep customers delighted, it happens automatically.
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