Crémieux Profile picture
Nov 1, 2024 3 tweets 1 min read Read on X
Among health "experts" who tweeted about Monkeypox, there was a dramatic tendency to get basic facts wrong.

For example, many claimed risk wasn't especially heightened among gay men.

PhDs were among the worst misinformation spreaders. Image
Being an "expert", being "credentialed", having "studied" something and so on, is not sufficient to make someone truly credible, to endow their words with reliability.

Being right is, and most popular "experts" were usually not right.

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More from @cremieuxrecueil

Oct 19
Boobtech is amazing.

It's an area that the rest of medicine could look to as an example.

The professionals making bigger, more realistic breast implants are simultaneously improving affordability, safety, and quality at a rapid rate🧵 Image
Consider one of the most recent improvements in boobtech: the Mia.

The Mia is the first successful "injectable" breast implant.

It cuts down scarring, complications, surgery time and cost, and it looks and feels more realistic than earlier implants. Image
The Mia is installed with a small armpit incision about 2 centimeters in length.

This is a significant reduction from earlier generations, which were regularly closer to 7 centimeters, or almost 3 inches. Image
Read 15 tweets
Oct 18
This should be considered *far* more alarming than the polls about political violence.

Two-thirds positive views towards an evil ideology that has killed tens of millions and cannot work is *very* bad. Image
It doesn't really matter if, at the end of the day, they're actually tepid towards socialism. This is like 66% of people saying Hitler was OK.

Source: news.gallup.com/poll/694835/im…

And an article qualifying how we understand support for political violence: cremieux.xyz/p/lets-not-ove…
I get too many dumb comments.

The dumb comment for this post is going to be something along the lines of 'But they're thinking about [successful place] not [bad place]!'

Ten points if you realize why that is not a meaningful reply.
Read 9 tweets
Oct 17
This is not true and there has never been a reason to believe it.

When we do have raw data for anywhere, we see that there's consistent scoring over time, not massive intelligence gains.

If we do not take measurement invariance seriously, we will be seriously misled. Image
I actually think it is exactly Noah's sort of post that helps to keep the culture of scientific fraud in academia and elsewhere alive.

Noah is smart enough and has been told enough to know better, and he still wrote something that he can't support.

But it's a popular message.
The message is just empirically wrong.

Will we ever move beyond the Cargo Cult version of the Flynn Effect that people like Noah, knowingly or otherwise, are wont to promote?

I don't think we will!

To learn more, see:
Read 5 tweets
Oct 14
Where did that human capital go?

After the Counter-Reformation began, Protestant Germany started producing more elites than Catholic Germany.

Protestant cities also attracted more of these elite individuals, but primarily to the places with the most progressive governments🧵Image
Q: What am I talking about?

A: Kirchenordnung, or Church Orders, otherwise known as Protestant Church Ordinances, a sort of governmental compact that started cropping up after the Reformation, in Protestant cities. Image
Q: Why these things?

A: Protestants wanted to establish political institutions in their domains that replaced those previously provided by the Catholics, or which otherwise departed from how things were done. Image
Read 12 tweets
Oct 7
What predicts a successful educational intervention?

Unfortunately, the answer is not 'methodological propriety'; in fact, it's the opposite🧵

First up: home-made measures, a lack of randomization, and a study being published instead of unpublished predict larger effects. Image
It is *far* easier to cook the books with an in-house measure, and it's far harder for other researchers to evaluate what's going on because they definitionally cannot be familiar with it.

Additionally, smaller studies tend to have larger effects—a hallmark of publication bias! Image
Education, like many fields, clearly has a bias towards significant results.

Notice the extreme excess of results with p-values that are 'just significant'.

The pattern we see above should make you suspect if you realize this is happening. Image
Read 10 tweets
Oct 6
Across five different large samples, the same pattern emerged:

Trans people tended to have multiple times higher rates of autism. Image
In addition to higher autism rates, when looking at non-autistic trans versus non-trans people, the trans people were consistently shifted towards showing more autistic traits. Image
In two of the available datasets, the autism result replicated across other psychiatric traits.

That is, trans people were also at an elevated risk of ADHD, bipolar disorder, depression, OCD, and schizophrenia, before and after making various adjustments. Image
Read 6 tweets

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