How the first solo-founder unicorn gets built: this+that
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essay How the first solo-founder unicorn gets built<br>t+t this+that team · June 29, 2026<br>An old fish swims past two younger ones and nods. “Morning, boys. How’s the water?” The two swim on, and after a while one of them looks at the other and asks, “What the hell is water?”
David Foster Wallace told that story in his 2005 commencement speech at Kenyon College, later published as This Is Water. His point was that the most obvious, important realities are often the hardest ones to see and talk about, precisely because they’re everywhere. The firm is one of those realities. Almost everyone reading this has spent their whole working life inside a company, or building one, or selling to one, and almost no one stops to ask the strange question underneath all of it: why do companies exist at all? It’s the water we swim in.
The short version<br>Coase explained why companies exist: using the market has costs, so you pull work inside a firm when that’s cheaper than buying it. The gig economy made buying cheap and still produced no solo unicorns, because price was never the only bottleneck. The one it left untouched was coordination, and that always landed on one founder’s attention. AI is the first thing that scales one person’s coordination, so the firm can shrink toward a single person. We think the first solo-founder unicorn arrives before the decade is out.
One economist thought to ask why companies existed. The answer he reached held up for nearly a century, until something started bending it, and this essay is about that bend and where it leads. Within a few years, someone will build a company worth a billion dollars alone. One equity holder. No real payroll. A single person at the center of work that used to take a few hundred people. Call it the first solo-founder unicorn. The idea is already in the air: Sam Altman has said the tech-CEO group chat he is in runs a betting pool on the year the first one-person billion-dollar company appears, a thing he calls unimaginable without AI. That it’s a wager now and not a fantasy is the tell. But a bet isn’t an argument, and most versions of this one are slogans. To make the version that holds up, you have to go back to the one economist who saw it.
Why firms exist in the first place
In 1937, Ronald Coase noticed the water. He asked a question economists had mostly swum past: if markets are such an efficient way to coordinate production, why is so much production organized inside firms, where a boss directs work by command rather than by price? His paper, “The Nature of the Firm,” gave the answer that still holds up: using the market isn’t free. Every market transaction carries costs that have nothing to do with the price of the thing itself. You have to find the right counterparty, negotiate terms, write and enforce a contract, monitor the work, and handle the exceptions when reality diverges from the agreement.
Coase called these the costs of using the price mechanism. When they’re high enough, it’s cheaper to pull an activity inside the firm and direct it by authority instead of buying it on the open market. When they’re low enough, you buy. A firm grows, in his account, right up to the point where the cost of organizing one more transaction internally equals the cost of getting that same thing through the market. That margin is the theory. The boundary of the firm sits exactly where the two costs balance.
Oliver Williamson later sharpened this into the study of asset specificity and opportunism, which is why he and Coase both have Nobel prizes and why the framework has lasted. But the spine is Coase’s, and it’s enough for the argument here: firms exist to economize on the transaction costs of using the market, and they stop growing where that economy runs out.
The easy story, and the fact that kills it
The obvious thing to say about AI is that it slashes those transaction costs, so the boundary collapses and firms dissolve into the market. Everything gets outsourced to a swarm of contractors and agents, the firm shrinks toward nothing, and a single founder commands the whole apparatus through a screen.
The problem with that story is that we have run the experiment already, and it didn’t produce a solo unicorn.
For roughly fifteen years the gig economy has driven the dollar cost of a market transaction toward the floor. Upwork and Fiverr put a global labor pool one search away. Fractional executives, fractional finance, fractional design, fractional everything became normal. Spinning up a contractor went from a procurement project to an afternoon. By Coase’s logic, as the price of each market transaction fell, the boundary of the firm should have moved sharply toward the individual. Solo operators running large distributed operations should have become common.
They didn’t. The gig economy made one-person businesses easier and a few of them lucrative, but it didn’t produce a...