10 THESES ON EDUCATION:

1/ Higher education has been built around the needs of the universities, not of the students.

The fact that most bachelor/masters have the same duration regardless of the complexity of the underlying field is a demonstration of that.
2/ Teachers should be hired on the basis of how good they are to teach, not on how good they are at writing papers or at passing standardized tests.
3/ College students earn more because college selects smart kids, not because it makes them smarter.

Nassim Taleb calls this "lecturing birds how to fly".

Evidence: college bribes are only paid to get a kid in & never to pass exams.

4/ The fact that in many countries most college courses can be attended for free (only the exams & diplomas require fees) but no one does, is a great indicator of why people join the university & of the value it adds.
5/ The opportunity cost of universities is huge.

Just check how well most 4th year language studies students speak a foreign language compared to people who spent one year living abroad.
6/ Universities need Skin In The Game of their students. This includes forfeiting at least part of their tuition in exchange for a share of the future income of their students and/or recruiting fees from companies.

@LambdaSchool is an example of well aligned incentives.
7/ Universities should not average data about future income of their students.

More granular data, with controls, is needed.
8/ Student loans must be limited in amount. Otherwise, they will only lead to higher fees & more student debt, till the inevitable default.

Like in the image below by @DrCirillo, the loans being the fence.
9/ Attendance to courses with limited employment possibilities should be limited.

Otherwise, we're wasting time and money to pass useless skills.

(Yes, they're useless, otherwise there would be employment.)
10/ Experience is learnt, not taught.

Universities should become places of experimentation, or should abdicate to spaces of experimentation.

Students should be exposed to feedback from reality, not protected from it.
11/ Papers produced by universities receiving public money should be available to the wide public for free, not hidden behind paywalls.
12/ As apparently it's ok to give teachers targets on the number of papers published, universities should give them targets that actually matter to students: employment of their pupils, for example.
13/ The most important matter, IMHO, is honesty about “who is university for”.

There is not a single answer. Probably, there should be many types of universities, one for each answer.

But each type of university should be fully transparent about who is it for & aligned to it.
14/ In a measure, we confuse "growing up because of university" with "growing up while at university".

If university took place between the ages of 25-28, we would associate most of the benefits of university to whatever we did between 18 and 22.
15/ I'm not saying "university is bad" or "university should only focus on the market's needs".

I'm saying "university has a heck of a cost, financial and of opportunity, both for the students and for the country, and we can do a lot better".
16/ Universities don't need to employ teachers who know their field immensely better than what their students are expected to at the end of the course.

Universities need teachers who know their field a bit better than their students but are incredibly good at teaching it.
17/ “Top-down teaching” (aka “I write on the blackboard and you copy it”) only works in fields where the future success of someone working in it can be predicted; ie survivorship bias is absent.

In other fields, other kinds of instruction are more appropriate.
17/ “Top-down teaching” (aka “I write on the blackboard and you copy it”) only works for a given field in the measure that future success of someone working in it can be predicted; ie survivorship bias is absent.

In the measure it can’t, other kinds of education are preferred.

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More from @DellAnnaLuca

Feb 9
FACE MASKS

I still hear that studies show that they do not work. But these studies are flawed. Here is why.

1/8 (screenshots from @PandemicBook)
2/8 Studies where only 42% of people in the "mask-wearing" group were actually wearing them are cited as evidence that masks don't work
3/8 The second flaw with masks studies: they are conducted in long-exposure setting (often when participants do not keep the masks on all the time) and then their results are assumed to apply to short-exposure settings too.
Read 8 tweets
Feb 8
My grandma’s apartment is valued at 95k€ ($108k)

The Italian government is paying for a 81k€ ($92k) intervention to improve its energetic efficiency. That’s 85% of the house value. Our cost: 650€ ($740).

And it’s a nation-wide program.

Good luck repaying this national debt.
My problem is not just with the absolute costs but also with the government removing most incentives for landlords to be cost effective.
My Occam's razor for why these incentives:

If you’re a landlord, your buildings just got a free bump in value (after you do the works which are free).

If most parliament members are landlords…
Read 6 tweets
Jan 25
If the expected value of breaking the law is positive, a competitive marketplace selects for psychopaths.

Dangerous.
We don’t just need fines that are more than fees. We also need them to enforce them early.

Because an early fine is small enough to change the behavior of a business without ruining it. Conversely, waiting becomes a lose-lose problem, where to punish a business we destroy it.
A marketplace that selects for psychopaths is not just dangerous.

It’s also a waste, because it doesn’t select for more honest and responsible businesses.

And puts pressure to their managers to select psychopaths, bringing the same pressure to deeper levels. Lose-lose.
Read 4 tweets
Jan 21
CATCHING UP WITH DEATHS

In Taiwan, South Korea, New Zealand, and a few more countries, fewer people died during the pandemic than during the average year.

If / once they re-open borders, will deaths “catch up”? Did they only delay the inevitable?

thread 1/7
First of all, green zones' populations are more vaccinated than Europe was in 2020-2021 and omicron is milder than Delta. This means that, even if the green areas got invaded by the virus in 2022 (say), there would be fewer excess deaths than recorded in Europe in 20-21.

2/7
Secondly, a major driver of excess mortality is the overwhelming of the healthcare system.

Green zones can modulate their reopening to travelers from abroad, thus having access to a flatter curve than Europe had in 20-21.

3/7
Read 7 tweets
Jan 12
Excess deaths in the age group 0-14 yo exceed the normal range for the first time since the start of the pandemic (Euromomo data). Image
It's currently at the level of winter 2019 (flu), but the "currently" refers to the latest week of full data, and that is week 48 of 2021, and it's known that child hospitalizations grew up fast in the last days of 2021. Image
.@MillunchickZ prompted me to verify an eventual link with children vaccination

These are the countries in descending order of excess children deaths. 🇨🇭 🇦🇹 (low child vaccination, high November cases) scores low; 🇪🇸 🇵🇹 🇮🇱 (high child vacc, low Nov cases) score high

1/2 Image
Read 4 tweets

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