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Luca Dellanna Profile picture
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11 Nov, 4 tweets, 2 min read
OTOH, yes, absolutely.

OTOH, wouldn’t it be nice if subjects were something that has more chances of being practically useful than for 1% of the attendance?
(I understand the idea of using proxies to compare Education, but I’m not sure that it justifies using bad proxies.)
OTOH, one argument is, yes, but how can I know that you, young Luca, will be the one using trigonometry in your adult life? We shall teach everyone

OTOH, the opportunity cost is huge, there’s much more which could be taught first. And the externality 👇

Fully agree. The idea that all subjects could contribute to failing a year is ridiculous.

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More from @DellAnnaLuca

Luca Dellanna Profile picture
12 Nov
I’ve checked a few of the studies reviewed. Most are in households.

Face masks, which *reduce* and *slow down* air flow without *stopping* it, are least effective with long exposure times, such as households.

That doesn’t mean that they’re ineffective eg at the supermarket.
Some red flags from some of the studies:
- “non-fit mask were used”
- “participants lived in university residence halls” – unless they wore masks also during dinner, transmission could have occurred then
This review is bullshit. It’s like studying whether car brakes work and including incidents where the driver was using his phone and didn’t brake
Read 4 tweets
Luca Dellanna Profile picture
8 Nov
Three things will disproportionately influence your career:
- how good you are at your job
- how fast your industry / town / country / network is growing
- how good your boss is.

Most people only take action on the first one and leave the other two to chance.

(thread)
This thread is about spotting bad bosses (I'll give you 8 red flags) and how to avoid working for them.

If you prefer reading it in post form, it's here:
getrevue.co/profile/dellan…
While there might be good reasons to work in an industry / town that isn’t growing, there are no good reasons for spending time under a bad boss.

It will severely limit your career growth, drain your energy, and affect your personal life.
Read 46 tweets
Luca Dellanna Profile picture
5 Nov
Germany today:
139 COVID deaths.

Germany one year ago today:
145 COVID deaths.

Vaccination rate: 67%.

Any thoughts on why?
I can only think of a much more diffuse virus, but perhaps there’s something else?
(By “today” I mean “yesterday”, ops)
The other option would be a different accounting, is any German aware of any change on this?
Read 5 tweets
Luca Dellanna Profile picture
3 Nov
So, let’s say that it’s 2025, we forgot about COVID, and there’s an outbreak of a novel virus in a foreign country.

We’re in the same situation as January 5th, 2020.

Given our experience with COVID, what should we do? Which policies, etc?
“Because we survived COVID even though wounded by restrictions, next time we shouldn’t use restrictions.”
I’m afraid that because we learned the true lesson that semi-closing borders late didn’t work, we will have learned the wrong lesson that closing borders early won’t work.
Read 4 tweets
Luca Dellanna Profile picture
1 Nov
One year ago today, the first Roam Book was published.

One year later:
- many roam books
- roam newsletters
- a dedicated website: roam-books.com

A thread on what they are and what they can become

First of all, what's a Roam Book (or rBook for short)?

It's a book published in @roamresearch format. This enables it to become much more than a book.

Some examples on the homepage of roam-books.com or in the quoted tweet.

I created the rBook format in November 2020 with the publishing of the first rBook, "Ergodicity" (gum.co/ergodicity/ann…), and then followed it with a second rBook, "This is Management"
gum.co/roambook/anniv…
Read 10 tweets
Luca Dellanna Profile picture
26 Oct
Imagine you were an alien. On your planet, there aren’t schools. From your spaceship, you spend some time observing one of ours.

What would you guess schools are for?

(a thread on education)
I bet that education wouldn’t be the first of your hypotheses. After all, schools deliver much better on other metrics.

For example,

2/N
Did you ever notice that most degrees are of the same length regardless of the complexity of the underlying field, and that some subjects are obsolete, as if their purpose was to employ teachers rather than teach useful skills?

3/N
Read 11 tweets

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