Crémieux Profile picture
Oct 22, 2024 • 15 tweets • 5 min read • Read on X
I suspect "The Sort" can greatly increase your exposure to time-wasting incompetenceđź§µ Image
The obvious example of how The Sort exposes you to incompetence is that nowadays, competent people don't go into the public sector all that often.

This is a mixed bag: while the government is a poor use of human capital, it needs some to avoid holding back the rest of society.Image
There are also a lot of fairly menial service sector jobs that you'll run into all the time, and these are less obviously, but no less problematized by The Sort. Image
Why? Because in the past, socioeconomic status was less cognitively stratified.

You can still see this today in many developing economies, where intelligence is slowly becoming more related to socioeconomic status as markets develop and opportunity expands. Image
The improvements to The Sort mean that fewer and fewer smart people are born into and remain in bad conditions.

But that also means that fewer and fewer smart people spend a long time in menial service sector jobs. Image
Accordingly, the quality of the work in those jobs is worse than if the job had more intelligent people working it.

Why? The first reason is that smarter people just do jobs better: They make fewer mistakes, operate more efficiently, often even have higher moral standards, etc. Image
The second reason is that, because smart people do jobs better, they teach less smart people how to do the job better, either directly or by example.

When you have more and less intelligent people play games, combining them brings up the less able.

In effect, many jobs are becoming more and more of left tail-exclusive jobs, with the effect being that they're done worse and worse, making your life harder and wasting more of your time when you run into them.

But it doesn't have to be this way!
Ever been to a Buc-ee's?

They're Texas' amazing gas station/car wash combo stores, and they're known

(A) Being pleasant, and

(B) Very publicly paying their employees well. Image
If you've been to a Buc-ee's you might have noticed that they offer discounted gas if you wash your car.

Their car washes are very long and the wait times are minimal compared to other offerings.

They have minimal human involvement.Image
Because Buc-ee's embraces productivity-improving tools and builds, and pushes their employees to be efficient, they can afford to pay them well and to pass on lots of savings to customers, and they also pass on saved time over other car washes.
Productivity enhancements that eliminate the involvement of human labor have the opportunity to cut out increasingly-inefficient human components of jobs.

If the carwash is nearly fully automated, the wages can be respectable and slow' human involvement can be minimized.
And where will the people currently working those jobs go?

Take manufacturing employment. When industrial robots are installed, employment goes down in that area, but up more in non-manufacturing jobs.

The disemployed move jobs. Source: https://library.oapen.org/handle/20.500.12657/55791
Wages tend to go up. They tend to move to better jobs, or at least jobs that are less dangerous, less monotonous, and which are better compensated.

And crucially, that left tail? It might move closer to the rest of the cognitive pack, meaning its members can skill up.
Automation might be even more of an engine of progress and life improvement than people generally assume, and it might make all of our lives better off by fixing some of the downsides of The Sort.

Thanks, robots! Image

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More from @cremieuxrecueil

Apr 21
British fertility abruptly fell after one important court case: the Bradlaugh-Besant trialđź§µ

You can see its impact very visibly on this chart: Image
The trial involved Annie Besant (left) and Charles Bradlaugh (right).

These two were atheists—a scandalous position at the time!—and they wanted to promote free-thinking about practically everything that upset the puritanical society of their time. Image
They were on trial because they tried to sell a book entitled Fruits of Philosophy.

This was an American guide to tons of different aspects of family planning, and included birth control methods, some of which worked, others which did not.Image
Read 14 tweets
Apr 17
One of the really interesting studies on the psychiatric effects of maltreatment is Danese and Widom's from Nat. Hum. Behavior a few years ago.

They found that only subjective (S), rather than objective (O) maltreatment predicted actually having a mental disorder.Image
Phrased differently, if people subjectively believed they were abused, that predicted poor mental health, but objectively recorded maltreatment only predicted it if there was also a subjective report.

Some people might 'simply' be more resilient than others.
I think this finding makes sense.

Consider the level of agreement between prospective (P-R) and retrospective (R-P) reports of childhood maltreatment.

A slim majority of people recorded being mistreated later report that they were mistreated when asked to recall. Image
Read 6 tweets
Apr 15
Nature finally published it!

The Reich Lab article on genetic selection in Europe over the last 10,000 years is finally online, and it includes such interesting results as:

- Intelligence has increased
- People got lighter
- Mental disorders became less common

And more!Image
They've added some interesting simulation results that show that these changes are unlikely to have happened without directional selection, under a variety of different model assumptions. Image
They also showed that, despite pigmentation being oligogenic, selection on it was polygenic.

"[S]election for pigmentation had an equal impact on all variants in proportion to effect size." Image
Read 9 tweets
Apr 10
I still think this is one of the most important recent papers on AI in the job marketđź§µ

The website Freelancer added an option to generate cover letters with AI, and suddenly the quality associated with cover letters stopped predicting the odds of people getting hired!Image
LLMs do a few things to cover letters.

Firstly, they increase the quality, as measured by how well tailored they are to a given job listing. Image
Second, they make job applications in expensive, so people start spending less time shooting off applications.

More, rapidly-produced job applications becomes the norm. Image
Read 8 tweets
Apr 6
The authors of this work now have a newer study with a nine-times larger sample!đź§µ

The overall result is that the rich are:

- More risk-tolerant, open to experiences, extraverted, and conscientious
- Less neurotic
- No more agreeable than normal, non-rich people Image
Now, we have a breakdown of different types of rich people!

Among those who could be classified, the majority of the rich (79%; >=€1m net worth) were self-made, with a smaller, 21% share whose wealth came primarily from inheritances. Image
How do inheritors and the self-made differ in personality?

They're both more risk-tolerant and less neurotic than the average, but the inheritor profile looks like a mixture between the overall rich and normal people, with more agreeableness, less openness, etc. Image
Read 8 tweets
Apr 3
My latest article asks and answers the question:

When did being fat become a thing for poor people?đź§µ

We should start with the observation that, as countries get richer, they tend to get fatter. Image
This might seem contradictory to the whole thesis, but it's not.

Countries become obese with wealth because poorer people within them are able to get fatter as they become richer.

The ecological and individual relationships differ.

Look internationally: Image
Now, we have good data for much of the U.S., and it tends to agree with Swiss and Dutch data, in that the inversion of the relationship between obesity and social status was a post-WWII, mid-century thing.

It precedes the welfare state, and then it's fairly constant. Image
Read 8 tweets

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