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Luca Dellanna Profile picture
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19 Mar, 5 tweets, 2 min read
ON IRRATIONAL BEHAVIOR

Four years ago exactly, I published my first book on irrational behavior and resistance to change.

To commemorate the occasion, for the next week, I'll post an excerpt a day and some reviews.

(thread, 1/N)

gum.co/heuristic
2/ First excerpt: we don't have a decision-making problem but an action-taking one. Image
3/ Most times, we do not procrastinate because we have something else to do. Instead, we find ourselves something else to do because we procrastinate.
4/ A review Image
5/ Fragmentalized perception Image

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More from @DellAnnaLuca

Luca Dellanna Profile picture
20 Mar
THEORETICAL VS PRACTICAL SKIN IN THE GAME

In theory, everyone living in the EU has skin in the game in the COVID reaction, because if we screw it they and their families are at higher risk of being infected.

In practice, it is not enough.

1/2
2/ One problem of the interconnected world is that skin in the game must be faster in its action. That's because it's faster and easier than ever to make a mistake that affects millions.
3/ In practice, to avoid major disasters, skin in the game must either have some element of quasi certainty (you will get sick, you will get caught).
Read 6 tweets
Luca Dellanna Profile picture
19 Mar
FOR A SAFER REOPENING

I took the freedom to translate the quoted thread, as it is very important. HT @XFaure for having shared it earlier.

It has great ideas, see tweets #9 and #18 below.

Translation adapted for brevity 👇👇👇 in the thread, 1/N

2/ Can we estimate a measure of the infections risks, so that we can free from the lockdowns all activities that are low-risk, while keeping away from the few high-risk ones?

The answer is yes.
3/ Let's begin with the basics. The probability of infection depends on the viral load we receive (i.e., the cumulative number of virus particles breathed in).

The denser the virus in the air, the higher the load.

Similarly, the longer we inhale, the higher the load.
Read 18 tweets
Luca Dellanna Profile picture
19 Mar
I don’t know re: fundraising, but my advice re: job interviews is similar.

Assume the first 3 will be NOs, just because you need specific practice. Do them with companies that are not first choices. Learning opportunities.

Then, you’re ready for shooting at your mark.
And if by any chance you get an offer at a company you don’t like, just refuse. You’ll still gain confidence & information about salary negotiations, interviews, etc.

They’ll make you better at interviewing at companies you want to work for, and at eventual salary negotiations
I personally began interviewing during my second year of university. I only accepted a job during my last one. All that experience doing interviews meant I could filter bad employers and get a good shot at my preferred one, for which I ended up working for 3 fulfilling years.
Read 4 tweets
Luca Dellanna Profile picture
14 Mar
My interview on Roam Books @ RoamSummit

You can get a look inside a rBook, learn about the writing and publishing process, and get a peek into the future of eBooks.

My two Roam Books are “This Is Management” (gum.co/RoamBook) and “Ergodicity” (gum.co/ergodicity)
One point I made but didn’t stress enough: the value of Roam Books is notice in the reading part but in what the enable after the first read.

Full integration in your notes, creation of recaps, perspectives, spaced repetition, integration with your todo list or agenda, …
Read 4 tweets
Luca Dellanna Profile picture
11 Mar
ANTIFRAGILITY AND FATIGUE

The antifragile benefits from variation.

However, too big of a variation, and the antifragile breaks.
Similarly, too much small damage too often, and the antifragile breaks too.

The latter is called "fatigue".

Let's see how it works.

1/N
2/ This thread assumes you've read @nntaleb's Antifragile.

Building on it, here is a simplified visualization of how the antifragile reacts to stressors.
3/ And this is a visualization of what happens over time to the antifragile when it is hit by a stressor that causes sparse damage

The antifragile becomes stronger → it becomes both less susceptible to sparse damage and to functional damage (both thresholds move right).
Read 22 tweets
Luca Dellanna Profile picture
11 Mar
ERGODICITY AND THE TRAGEDY OF THE COMMONS

An example of tragedy of the commons. A city has access to a small forest.

If you are a citizen, self-interest would dictate that you cut a tree to get some wood to heat your house. But if everyone does, the wood disappears.

1/N
2/ The tweet below recently made me notice that this kind of problems can be formulated in terms of #ergodicity.

Let's see how and why it matters.

3/ One of the definitions of ergodicity is "when the outcome of a person performing an action n times coincides to the outcome of n people performing the action once."

Here is how it applies to the tragedy of the commons:
Read 14 tweets

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