Luca Dellanna Profile picture
Sep 23, 2020 7 tweets 2 min read Read on X
COST-BENEFIT ANALYSES

The chart below shows the expected financial returns of a Russian Roulette gambler playing it multiple times.

There is no high-enough prize (nor low-enough cost) that make Russian Roulette worth it over time.

(thread, 1/N)
2/ Of course, there are reasons for which one would want to play Russian Roulette once.

But Russian Roulette cannot be a long-term strategy.
And it's not about cost-benefits.
3/ In a previous thread posted today, I compared GMOs to Russian Roulette.

Both come with a risk of ruin, and therefore none can become a strategy.
4/ I later deleted that thread, because I didn't want to give the wrong impression that "$0 payout" and "death of the ecosystem" are the same thing.

They are not, and I did not intend suggest that.
5/ What I wanted to show, is that one cannot take a single-gamble cost-benefit analysis and extend it to a repeated set of gambles.

This is a well-known phenomenon, but I found the RR chart to pass the point very well.
6/ This is because it is my impression that we are able to acknowledge that "repeated exposure to ruin means inevitable death"

but still, in our brain, it doesn't cancel the visceral thought that "the benefits might be worth the risk".
7/ I found this chart very good at passing the point that not only the worst-case scenario is bad, but that any realistic good-case scenarios are bad too.

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with Luca Dellanna

Luca Dellanna Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @DellAnnaLuca

Apr 8
BEYOND THE CHECKLIST

A problem of many organizations is that they are aware of the needs of employees (impact, recognition, growth, fair salary, etc) but fulfill them as they would with a checklist: let's do this superficially, checked, done.

Some examples (& solutions) ↓

1/8
Example #1: recognition.

Many companies and managers know that employees want recognition.

But they fulfill this need in a very superficial way. With a small internal award, a certificate, etc. Top red flag: it's HR-driven and/or feels cringe.

2/8
The alternative:
– make it personal: it should come from the boss or the boss' boss.
– make it congruent: a moment of recognition followed by a year of no recognition feels (and likely is) fake.

3/8
Read 8 tweets
Oct 5, 2023
Whenever we desire an outcome but not the actions that would make us achieve it, we end up with inaction, busywork, shortcuts, excuses, and, ultimately, frustration.

(a thread of highlights from the first chapter of my book "The Control Heuristic")

1/14 Image
You probably do not have a decision-making problem, but an action-taking one

2/14 Image
Decision-making is not the same as action-taking.
The cortex is mostly responsible for taking decisions, and the ~basal ganglia determines whether we act on our decisions.

3/14 Image
Read 14 tweets
Jun 9, 2023
TIPS FOR EFFECTIVE DELEGATION

1) Minimize the chance of misunderstandings:

Explain:
– what's too little
– what's too much
– common mistakes
2) Explain why you need it done.

Not who asked for it. What it is for. What happens if it's not done. (And what happens if it's not done well enough.)

Tasks whose rationale isn't explained relevantly are done badly and/or at higher emotional cost
3) Pre-empt inaction and failure.

Ask them and yourself:
– Why might they not take action?
– Why might they take action and yet fail?
Read 7 tweets
Jun 9, 2023
Footnotes are my favorite feature of my book Ergodicity (from which the screenshot below is taken).

In fact, there’s plenty of bolded text in the footnotes.

A few examples in this thread. Image
Image
Image
Read 6 tweets
May 26, 2023
The recent wealth tax increase in Norway was expected to bring an additional $146M in yearly tax revenue

Instead, an estimated $54B-worth of ultra-rich left the country, leading to a lost $594M in yearly wealth tax revenue

A net decrease of $448M+

(sources and calculations ↓)
The Guardian estimates the wealth of the relocated millionaires at 600B NOK, or $54B. That would have been taxed at 1.1%, which means $594M in wealth tax lost

Norway raised NOK 16.1B = $1.46B in wealth taxes in 2019 (page 3 of the PDF below); increasing the wealth tax from 1% to… twitter.com/i/web/status/1…
Plenty of replies who seem to think that leaving the country to keep one’s money is greed, but implementing a wealth tax to get someone else’s money isn’t
Read 4 tweets
Apr 2, 2023
Today is Autism Awareness Day, so here is an example to visualize autistic perception

(continues below, 1/6)
A visual representation of perception on the Autism Spectrum (mild)

[2/6]
And a visual representation of perception on the Autism Spectrum (severe)

[3/6]
Read 6 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us!

:(