Kevin Roose from New York Times just published an article about our Manifest conference, forecasting and prediction markets. And despite what you might assume from "NYT covering weird rationalist-y event", the article is very fair, perhaps even positive! It is paywalled; here's an archive.is link, and excerpt below:


I had never before attended a business conference with a 28 percent chance of an orgy.

But those were the official orgy odds when I arrived at Manifest, a self-described “gathering of forecasting nerds” that the forecasting start-up Manifold Markets put on last month in Berkeley, Calif.

By the second day of the conference, the odds had risen to 47 percent. And on the third day, they reached 100 percent — because there had, in fact, been an orgy. (No, I was not invited.)

This strange blend of data and debauchery — equal parts Math Olympiad and Burning Man — was the dominant vibe at Manifest, which was held in a converted hotel and populated by a crowd of about 250 tech workers, bloggers, economists, students and assorted wonks.

They were there to celebrate prediction markets, online platforms where users can wager on future events — everything from “Will Ukraine regain control over Crimea before the end of 2024?” to “Will Elon Musk and Mark Zuckerberg have a physical fight in 2023?”

On Manifold Markets, users can create a market on any topic and invite other users to bet on it. Winners get bragging rights along with units of Mana, the company’s play-money currency, which they can convert to charity donations or use on other bets.

Prediction markets aren’t a new idea, nor is the hope that betting could produce useful information. Gambling on elections and other political events was common in the United States during the 19th and early 20th centuries. And in countries where political betting is still legal, odds are often cited alongside polls and surveys as a meaningful data point.

But in recent years, prediction markets have caught the attention of a crowd of Silicon Valley empiricists who believe we can fix much of what ails society by betting on our future the way we wager on stocks or sports games.

These people believe the world is full of bad information — biased news, out-of-touch punditry, loony conspiracy theories. Much of this information is spread by people without skin in the game. (Or worse, people with incentives to lie.) And many people have lost faith in the experts and institutions, such as the government and the media, that once served as trusted referees.

Prediction markets, they believe, offer a better way to search for truth — rewarding those who are good at forecasting by allowing them to make money off those who are bad at it, while settling on the facts in an unbiased way.

(Continued in the article)

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Archive link that skips paywall and has all the images: https://archive.md/ooQoY

I [Kevin Roose] had never before attended a business conference with a 28 percent chance of an orgy.

Do we know if this is actually true? He's been to South by Southwest (photographed there on his Wikipedia page) and has covered tech and finance, fields that seem to me like they contain orgy-enjoyers.

Perhaps he means precisely 28%. I think it's unlikely that he attended a conference with that precise probability.

I am confident he means he's never been to an event where there was a transparent signal that there was at least a 28% chance. If other events were higher he either didn't know or couldn't argue it credibly. 

I agree that your first sentence was likely his intention, but it's not what he wrote, and I suspect what he wrote is false.

[-]Razied7mo126

If he's ever attended an event which started out with less than a 28% chance of orgy, which then went on to have an orgy, then that statement is false by the Intermediate Value Theorem, since there would have been an instant in time where the probability of the event crossed 28%.

That's only true if the probability is a continuous function - perhaps the probability instantaneously went from below 28% to above 28%.

Oh, true! I was going to reply that since probability is just a function of a physical system, and the physical system is continuous, then probability is continuous... but if you change an integer variable in C from 35 to 5343 or whatever, there's no real sense in which the variable goes through all intermediate values, even if the laws of physics are continuous.

Razied's sibling argument isn't literally quite right, but the spirit is: he's probably been to several conferences, the chances of orgies happening have changed during them, etc.

Also "precisely 28%" is a type error when talking about market prices with some transaction cost (and where the price is truncated to two significant digits) - you probably want to read it as "28% plus or minus a couple percentage points".

Maybe he meant that at South by Southwest the chance is higher than 28%?

I cannot recall an article by the NYT and maybe most publications that is so relevant accurate and positive. Genuinely shocked.

Don't look at the comments of the article if you want to stay positive.

But in recent years, prediction markets have caught the attention of a crowd of Silicon Valley empiricists

"empiricists"! What's that about?

We may have started to notice that "the distinction between rationalists and empricists was always fake", I wonder if someone at manifest told the guy "rationalists? Well actually we identify as empiricists."