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Culture War Roundup for the week of September 28, 2026

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Fantasy world political predictions.

Yet those are the actual odds presented by the most accurate forecasting method we have. Maybe if the public has turned against the Trump admin so much that the electoral odds look like fantasy, it should be reason to self reflect on those failures that brought us here? Maybe one of the most unpopular wars in history was a mistake and no amount of propaganda changes that.

And as always with prediction markets, if you don't believe them, then go bet against it and make a lot of money.

the most accurate forecasting method we have

As you regularly invoke LLMs' opinions as evidence, I went ahead and asked Claude Opus 5.5:

Are prediction markets the most accurate forecasting method we have?

Its answer begins:

Not clearly. Prediction markets are among the best general-purpose forecasting tools, but the evidence doesn't support calling them the most accurate method overall. (... +500 words)

Claude made it clear that the answer varies based on topic, so I went and asked whether prediction markets are the best forecasting method for predicting who will win in a given state. Its answer:

In general, no single method is clearly the most accurate at predicting which party wins a US state. Markets, poll-based models and expert ratings perform about equally well, and averaging them tends to beat relying on any one.

Is this enough to get you to admit that LLMs' opinions aren't actually conclusive evidence?

You do, actually, have to pick one:

a) You were wrong to call prediction markets the most accurate forecasting method.

b) You shouldn't cite LLMs' opinions as evidence.

I think Claude is wrong and both polling aggregators like Nate Silver and betting/prediction markets have consistently outperformed elite pundits at election prediction.

These midterms will be a good test - both polls and prediction markets are predicting a landslide, while the pundit consensus is that the Democrats are narrow favourites to win the House and have no chance in the Senate.

Random conservatives on the internet, of whom we have a great many here, are equivalent to a rock with "The polls are rigged, the GOP will win easily." Such a rock would have called two of the last three Presidential elections correctly (but zero of the last three mid-terms), but I don't think that is good evidence that the writing on the rock is causally connected to election results. The rock probably beats elite pundits, but so do tossed coins, psychic octopuses, the hemline rule, astrology and technical analysis.

Yes, I do actually agree -- AFAICT, proper prediction markets consistently outperform other predictors in this domain.

My goal here is just to get magicalkittycat to acknowledge that Claude saying X shouldn't be used on the Motte as dispositive towards X being true.

I'd hoped that by bringing up an example where mkc and I actually agree on the object level (that prediction markets are very good, actually), this might be enough for mkc to recognise the point.

Unfortunately, this isn't what has happened.

This is the most hilarious nitpick I've ever seen.

Not clearly. Prediction markets are among the best general-purpose forecasting tools,

In general, no single method is clearly the most accurate at predicting which party wins a US state. Markets, poll-based models and expert ratings perform about equally well

Your response is Claude pointing out "okay prediction markets are really good but they aren't the best at everything all the time and sometimes other methods are just as good"?

Truly incredible. You dismiss the prediction markets as fantasy and yet your own attempt at a defense admits they are really good. Split hairs all you want over what "best" means, the odds are still the odds.

This is how you act anytime someone points out verifiable facts that go against you, you don't actually address the claims (in fact again your own defense is actively acknowledging the prediction markets are top tier and highly accurate), you just throw a tantrum and try to divert the topic. The odds are the odds and your behavior doesn't change that, reality will not bend because it triggers you.

Stop lying.

You dismiss the prediction markets as fantasy

Stop lying. Where did I say that?

your own attempt at a defense admits they are really good

Stop lying. Where did I say that?

This is how you act anytime someone points out verifiable facts that go against you

Stop lying. Where did I say that?


Are you confusing me with a different user? Because none of what you've said is in my comment.

I actually think that prediction markets are very good. But my comment is about getting you to acknowledge that LLMs are not a source of evidence. This takes basic reading comprehension to understand, so I get that it's easier to make up a bunch of stuff I didn't say. But could you maybe try being honest for once, instead of just lying?

I actually think that prediction markets are very good. But my comment is about getting you to acknowledge that LLMs are not a source of evidence.

Frontier models are definitely a form of evidence just not proof. I think it'd be fair to call their position the null hypothesis from which to argue from, not infallible by any means but if you disagree you should have a reason. And the response you got from claude barely disagreed with MK.

Are you confusing me with a different user? Because none of what you've said is in my comment.

Yep I double checked and you're a different person than who I originally responded to. Their claim was that the prediction market odds were fantasy.

But my comment is about getting you to acknowledge that LLMs are not a source of evidence.

I don't disagree much with Claude's take here! It's very hair splitting in determining which forecasting method counts as "best". Prediction markets are extremely good and some of the other traditional methods are also extremely good and if I would rank one as 94 points and the other as 96 points, and vice versa from Claude, I don't see this as radical disagreement.

We both still agree they're ~95 points good.

I accept your apology for falsely attributing a bunch of claims to me.

I don't disagree much with Claude's take here!

Dude, I know. I actually agree with you on the object level. I'm trying to get you to understand that what LLMs believe should not be presented as evidence on the Motte.

You claimed that prediction markets are the best predictor.

Claude disagrees.

No one said "radical" disagreement. I'm solely pointing out that, according to Claude, you are wrong. (I actually back you over Claude here; that's my point!)

This is how it reads whenever someone else posts a comment, and you respond by going "well Claude says not-X". Claude saying not-X isn't relevant! It's just going "my LLM could beat up your LLM".

Do you at least agree that, in principle, if I could show an LLM outputting beliefs you believe are wrong (which I think I'vce done a couple of times by now), that this would suffice to show that LLMs' high-level opinions shouldn't be cited as evidence on the Motte?

This argument would work out a lot better if there was a meaningful distinction here and not hair splitting between my saying prediction markets are the best and Claude going prediction markets are one of the best in some contexts but not in everything.