Information vs entertainment

If you only read the volume, prediction markets are a sportsbook. Since sports contracts launched on Kalshi in mid-2024, sports have been roughly 80% of the platform's volume — and they've stayed there ever since.¹ Open the app on a Sunday in the fall and it is, overwhelmingly, people taking a side on a game. So when a skeptic says "this is just sports betting with extra steps," they are not making it up. They are reading the tape.

And yet the people building this thing — myself included — keep insisting the point is information. That sounds like denial, or worse, marketing. So let me not dodge it. The honest position isn't "it's not gambling." It's that two true things are sitting on top of each other, and most arguments only want to look at one of them.

Two true things, at once

Here is the distinction the noise collapses. A prediction market is a mechanism, and the mechanism emits information no matter what's traded on it. As Part 5 laid out, a market price is a calibrated, public probability — a live number that says how likely the crowd thinks an outcome is, with no house setting it against you. That's true whether the contract is a Senate seat or a Sunday game. The exhaust of the machine is a forecast.

The other true thing: what people trade on it today is mostly entertainment. The 80% is real. Most of that flow is action on a game, not a hedge and not a forecast anyone consults. Pretending otherwise — calling the category "pure forecasting infrastructure" right now — would be the same marketing dodge I just refused. It isn't, today.

So the mechanism is information; the use is mostly entertainment. The skeptic and the builder are describing the same object from two ends. The interesting question is not which one is right. It's what the relationship between the two halves actually is — because that's where the disagreement secretly lives.

Entertainment is the subsidy

The builder's bet is not that the sports volume is an embarrassment to be explained away. It's that the sports volume is the engine. Liquidity is the real product of a market — the thing that makes a price trustworthy and a position exitable — and liquidity has to be paid for. Somebody has to take the other side, fund the order books, and carry the inventory. That's expensive, and a forecast of next quarter's CPI does not, on its own, draw a crowd big enough to fund it.

Sports does. Millions of people want action on a game every week, and that flow is what pays market makers to show up, tightens the spreads, and keeps the rails warm and capitalized. Those same rails — the matching engine, the settlement, the surveillance, the maker incentives — are what then price an election, a Fed decision, a hurricane landfall. The entertainment volume subsidizes the information layer. The thrill funds the order book; the order book is what makes the forecast sharp.

This is not a special pleading you only hear in prediction markets. It's the most common way useful infrastructure gets built: a frivolous-looking demand bankrolls the rails, and the serious use rides in on them once they exist.

That's the claim, plainly: entertainment is the on-ramp, not the destination. Sports liquidity is how the infrastructure gets built and capitalized; the information it can then produce — for elections, macro data, policy, real-world risk — is what the infrastructure is for. You don't have to pretend the on-ramp is the highway. You just have to notice it leads somewhere.

The tell is who's buying the data

A bet is the kind of argument you can make on either side forever. So don't take mine — look at who is putting money on the information half, and what they're buying. Because if the destination were a fantasy, the most sophisticated institutions in finance would not be paying for the exhaust.

In October 2025, Intercontinental Exchange — the company that owns the New York Stock Exchange — committed up to 2 billion dollars to Polymarket. Read what the deal was for: distributing Polymarket's event-market data.² ICE did not write that check for a sportsbook. You cannot license the output of a slot machine, because a slot machine produces nothing but a payout. ICE paid for the probabilities — the calibrated, public forecast the mechanism emits. That is a sophisticated buyer valuing the information half at a number no one pays for entertainment.

And it shows up where the rest of us can see it. By December 2025, both CNN and CNBC had signed deals to carry Kalshi's market-implied odds on air — read out as news, the way you'd read a poll or a jobs number.³ No network puts a roulette wheel on the chyron during election coverage. They put up the odds because the odds are information — a live, accountable estimate worth reporting. When institutions buy the data feed and newsrooms quote the price, you are watching the destination get built in real time, even while the volume underneath stays mostly sports.

What's hard — and what would prove me wrong

I won't land this on a triumphant note, because the honest version has a real risk in it. The destination is not guaranteed. The whole argument rests on the information layer — the data, the hedging, the forecasting — actually growing on top of the entertainment base. If it stays 80% sports forever, with no thickening of the markets that price elections, macro, and policy, then the skeptic was right all along: it's a sportsbook with a forecast bolted on for PR, and the "information" was a rounding error the whole time.

So the case is falsifiable, and I'd rather say so than oversell it. The tells point the right way today — ICE bought the data, the networks quote the price, the non-sports markets exist and deepen around big events. But "points the right way" is a direction, not a destination reached. The thing to watch is whether the serious-use layer compounds, or whether it stays a thin garnish on a very large plate of sports. That is the number that settles this, and it isn't in yet.

Which is the honest landing. It is both — a mechanism that emits information and a product most people trade for the thrill — and the claim is about direction, not purity. Entertainment is the on-ramp; information is what the road is for. Only one of those two is worth pouring concrete for, and the entertainment is how the concrete gets paid for. That's not a contradiction to apologize for. As Part 5 argued from the mechanism, and this piece argues from the money: it's the plan.