Prediction markets are ushering in a world in which news becomes about gambling

I already live in a world where people make odds about whether I'm going to die. They're called "actuaries," and they work at life insurance companies. There are also oddsmakers of the same kind at car insurance companies, etc.

Right now, I hate that people who can actually analyze enough data to make odds about these things can only earn a living working for companies that are incentivized to find ways not to pay out when the odds do break against them. I'd much rather these people be able to make their livings just calculating odds, placing bets, and being right. I would like to have access to their calculations, and not be in a position of "just take it or leave it" when I'm evaluating a prospective plan from a life insurance company, for example.

Yes, by all means, there will be gamblers in these markets. There will always be some amount of noise, just like there is in the stock market. But why would that end up being the bulk of the industry? Just like with Wall Street, I would expect companies to grow up around these markets that specialize in getting the odds of things right, and making money off of their predictions. If the market ever became truly efficient, I think we would have a MUCH better idea than we do now about the likelihood of all kinds of things.

Heck, even if I think of something as apparently mundane as weather forecasting, if somebody came up with a breakout model that was right substantially more often, I would expect they would be able to raise all sorts of capital around it and start winning in all the weather forecasting markets, which would then make their predictions a reliable signal, and we'd finally have better information about what the weather is going to do.

I think one part I must be missing is why so many people are assuming that the primary user of prediction markets would be gamblers instead of specialists, especially once they operated at scale. I just don't see why that would happen. Anywhere there's an opportunity to make money reliably by coming up with better analysis or prediction tools, capital will flock there and incentivize coming up with better analysis or prediction tools.

I think I really would like to live in a world where that was highly incentivized, and I'm confused why people would not want that.

ETA: I don't think the gamblers would ruin this any more than they ruin Wall Street. I don't think they have enough capital to matter. (They are, after all, prone to losing money.)

And yes, if it starts to be seen as one of the levers to manipulate in manipulating public opinion, it will become more expensive. That does not improve it's predictive value, since we never really know how expensive it is on either side relative to the bankrolls and motivations of those who might want to manipulate it.

But for anyone who wants to use it as a crystal ball, go right on ahead — good luck with that!

I think I understand what you're saying about the pricing. Am I correct in saying, then, that if the odds are 90% in favor of my living through the contract, the "No, smeej won't die today" price should be close to $0.10 (again, ignoring fees and the time value of money)?

If the hitman tries to buy in with 10% of the total funds already in the market, the odds/price are going to shift hard. It's going to devour a huge chunk of the order book. Any market that suddenly has someone come in at 10% of the whole market value is going to get a massive trading wick. So yeah, he'd get some shares at $0.10, but he's probably going to eat the open order book to a much higher cost. He can 10x some very small portion of his money (however many shares are on the book at $0.10), but he can only 5x his money at $0.20, or 3x at $0.33.

Even if we assume he does have $50k to dump into the market, I still don't see how he's going to more than triple his money, which is a heck of a lot less than taking the entire market's value as though it were a bounty.

Essentially it's a big straw goat in Sweden that vandals sometime set on fire.

Right towards the end as the probability approaches zero there's a huge profit incentive, "done deals" usually go under well under 1¢ meaning 100-200x returns.

A US man once traveled to Sweden to set the goat on fire, he was caught, fined $20k(?) and then fled the country before paying the fine.

Risk reward in a situation like this absolutely creates a situation for prediction markets similar to the observer effect in physics, it's no longer predicting the future and instead altering it.

But maybe the passengers or crew on that plane had a better idea of why they were delayed, which I'm not sure any site would show. I've been on the other end too, knowing my plane isn't taking off due to a jammed door and texting updates to someone who was supposed to pick me up on the other end.