On the Secretary problem

Peter - From the Stone Ages of Applied Mathematics

I like the Secretary problem:

The basic form of the problem is the following: imagine an administrator who wants to hire the best secretary out of n rankable applicants for a position. The applicants are interviewed one by one in random order. A decision about each particular applicant is to be made immediately after the interview. Once rejected, an applicant cannot be recalled. During the interview, the administrator gains information sufficient to rank the applicant among all applicants interviewed so far, but is unaware of the quality of yet unseen applicants. The question is about the optimal strategy (stopping rule) to maximize the probability of selecting the best applicant.

Have a look at these articles for details:

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How to maximize your chances of winning a Sports bet?

Derek Bruff - Probability

Let’s say you have to maximize your chances when betting for an endgame result at a match between two teams.

You should generally bet 1-0, if a team is slightly better than the other. 2-0 for a clear advantage. Rarely 3-0, just for when there’s a huge difference of value. You should only bet equal (0-0; rarer – 1-1) when the odds are rather equal.

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Then it goes and takes with it seven other spirits more wicked than itself (Matthew 12:45 – fragment)

Jessica Meckmann - Daemonized

43 “When an impure spirit comes out of a person, it goes through arid places seeking rest and does not find it. 44 Then it says, ‘I will return to the house I left.’ When it arrives, it finds the house unoccupied, swept clean and put in order. 45 Then it goes and takes with it seven other spirits more wicked than itself, and they go in and live there. And the final condition of that person is worse than the first. That is how it will be with this wicked generation.” (Matthew 12:43-46 NIV)

The devil learns from its mistakes, becomes better.

A fallen angel? Yes, but still interested in winning and becoming better. Seven times better.

Got to notice its perseverance.

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Despre bogații care își cumpără avioane

Gustavo H. Braga - Gulfstream Aerospace G450 I OE-ITC I Private

Există o știre (Tot mai mulți bogați își cumpără avioane. În 2021, zborurile private au înregistrat o creştere de aproape 60% – Stirileprotv.ro) conform căreia:

La nivel mondial, zborurile private au înregistrat o creştere de aproape 60 de procente în 2021, faţă de anul precedent.

Mie îmi e tot mai clar că există două lumi – lumea oamenilor foarte bogați, și lumea clasei medii/a celei de jos.

Îți cumperi avion ca să nu ai de-a face cu oameni săraci.

E o metodă de protecție și de izolare – “Sunt în lumea mea, nimic nu mă afectează”.

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Selling through a presentation

Don Sniegowski - September yearling sales

Sometimes, during a presentation (for example, a PowerPoint slideshow), the presenter wants to state: “OK, this is a self-promotion”.

The thing is, as far as I can tell, most presentations try and sell you something.

It might be something obvious (“We talk about the product, you’ll get the hint to buy it, even if it’s not explicit”), but even in the cases where’s no explicit sale, there is generally something being sold – the image of the presenter posing an expert.

If a person is on a stage and speaks to you about matter X, you’ll likely consider that person a professional/expert, and you’re more likely to buy their services.

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Prisoner’s dilemma and freedom

david_drei - Freedom

The prisoner’s dilemma is a standard example of a game analyzed in game theory that shows why two completely rational individuals might not cooperate, even if it appears that it is in their best interests to do so. (Prisoner’s dilemma – Wikipedia)

And, also, have a look at this article (it’s a tough reading): A fragment on courage and stupidity which I like a lot. It’s all about freedom – Blog de Olivian Breda.

I think you can only be free when you don’t take into account the risks you’re put into, and act for the greater good.

To me, the prisoner’s dilemma really exists due to the fact that we, as a species, are weak – we need a state of comfort of the mind.

Had we been free, it would have been easier.

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Making the errors while you’re still young

Thomas Hawk - My Endless Error

I got a (what I think to be) cool idea from Nassim Nicholas Taleb: make some small mistakes when you can do so without lots of damage.

So, if you don’t go to the restaurant and make mistakes when you are young, when you grow up you can make a fool of yourself in an important situation.

If you don’t travel, you don’t expose yourself, this gets harder later in life.

I got into a situation like this right this year when I had to order a Taxi in Constanța.

I wasn’t used to it, I didn’t have any numbers on my cell phone, it took around 10 minutes to call various companies (I had no idea which to pick).

Finally, a pirate cab stopped and offered me a poor deal, which I took, being pressured by time.

Things might have gone better had I been used to ordering a cab when the pressure was lower, and now I would have gone in repeat mode.

The conclusion? Make errors when you’re young, it will be easier to avoid errors when you get older.

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