johan_hellman's profile picture. Opinions are my own. Retweets or likes are not endorsements.

Johan Hellman

@johan_hellman

Opinions are my own. Retweets or likes are not endorsements.

Johan Hellman reposted

I think most of you haven’t internalized how devastating Philip Tetlock’s results were in the early 2000s: on average, subject-matter experts didn’t beat random guessing—and did worse than simple heuristics. If this isn't part of your worldview, you're ngmi

zagrebbi's tweet image. I think most of you haven’t internalized how devastating Philip Tetlock’s results were in the early 2000s: on average, subject-matter experts didn’t beat random guessing—and did worse than simple heuristics.
If this isn't part of your worldview, you're ngmi

Johan Hellman reposted

I shared this in my newsletter yesterday, but today, I want to share it right here in the belly of the beast. I’m asking all of you to go on an extreme crash diet. This is not a crash diet for your nutrition…those don’t work. This is a diet for your mind. It will work.


Johan Hellman reposted

Förra året togs mer växthusgaser upp – främst av all den skog som täcker 70 procent av landets yta – än som släpptes ut av industrin, vägtrafiken och annan mänsklig verksamhet. En fantastisk klimatnyhet. År nettonoll är här! Tjugo år i förväg. Men inget jubel hörs. Tvärtom.

Skogkar's tweet image. Förra året togs mer växthusgaser upp – främst av all den skog som täcker 70 procent av landets yta – än som släpptes ut av industrin, vägtrafiken och annan mänsklig verksamhet.
En fantastisk klimatnyhet. År nettonoll är här! Tjugo år i förväg. Men inget jubel hörs. Tvärtom.

Johan Hellman reposted

¿Por qué las casas de campo nórdicas son rojas? Os cuento la historia del Falu Rödfärg. Laia ¿has hecho un vídeo sobre un color? Sí, porque no es solo un color, es parte de la cultura nórdica y porque a través de él se puede aprender historia. youtube.com/watch?v=Mu-I2d…

TheValkyriesVig's tweet card. ¿Por qué las casas de campo nórdicas son rojas? Os cuento la historia...

youtube.com

YouTube

¿Por qué las casas de campo nórdicas son rojas? Os cuento la historia...


Johan Hellman reposted

People loved punching holes in paper tape when that was all they had. They loved toggling binary into the front panel when that was all they had. They loved writing assembler, then Fortran, then COBOL and C -- because that was all they had. Our tools get better and better.…


Johan Hellman reposted

The French PM, Francois Bayrou, is the first European politician of his cohort, as far as I can tell, to successfully frame the debate about fiscal sustainability as a matter of intergenerational equity. The generation that has had a great run leaving a huge bill for their…


Johan Hellman reposted

🎯 “El problema es que se han creado necesidades a gran velocidad y se está siendo mucho más lento en fabricar formas de colmarlas, lo que redunda en una sociedad con infinidad de personas frustradas porque el lanzamiento de una colección exclusiva online de su marca favorita…

Columna | "Nos resulta imposible celebrar la inteligencia porque vivimos en un mundo cuyo discurso lo domina gente sin ella", por Xavi Sancho social.elpais.com/brgkt2

el_pais's tweet image. Columna | "Nos resulta imposible celebrar la inteligencia porque vivimos en un mundo cuyo discurso lo domina gente sin ella", por Xavi Sancho social.elpais.com/brgkt2


Johan Hellman reposted

You can, simultaneously: - Dollar cost average, remain long-term optimistic. - Not panic. - Enjoy the outdoors, kids, good food, etc. - Realize how unbelievably destructive and unnecessary this is.


Johan Hellman reposted

When done well, Spanish cuisine is the best on the planet. But in my country, it is remarkably overlooked. Here are the foods items from every region that make Spain the culinary capital of the world: (a 🧵)

NickLovesSpain's tweet image. When done well, Spanish cuisine is the best on the planet.

But in my country, it is remarkably overlooked.

Here are the foods items from every region that make Spain the culinary capital of the world:

(a 🧵)
NickLovesSpain's tweet image. When done well, Spanish cuisine is the best on the planet.

But in my country, it is remarkably overlooked.

Here are the foods items from every region that make Spain the culinary capital of the world:

(a 🧵)
NickLovesSpain's tweet image. When done well, Spanish cuisine is the best on the planet.

But in my country, it is remarkably overlooked.

Here are the foods items from every region that make Spain the culinary capital of the world:

(a 🧵)
NickLovesSpain's tweet image. When done well, Spanish cuisine is the best on the planet.

But in my country, it is remarkably overlooked.

Here are the foods items from every region that make Spain the culinary capital of the world:

(a 🧵)

Johan Hellman reposted

Too often, we reward people who solve problems while ignoring those who prevent them. Instead of glorifying those who run around putting out fires, we need to create an organizational culture that empowers everyone to act responsibly at the first sign of smoke.


Johan Hellman reposted

"From 1994 to 2023, there was the dot-com bubble, a 50% crash, 9/11, a housing bubble, the Great Financial Crisis (which came with another 50%+ crash), a handful of wars, 3 recessions and a pandemic. …stock market was up 10% per year." @awealthofcs awealthofcommonsense.com/2024/04/30-yea…

awealthofcommonsense.com

30 Years of Financial Market Returns - A Wealth of Common Sense

Dissecting 30 year returns for stocks, bonds and cash.


Johan Hellman reposted

If you want to get rich quickly, the biggest factor is luck. If you want to get rich eventually, the biggest factor is consistency.


Johan Hellman reposted

Why do we need fintech? Because banks run on 1960s tech (mainframe core), to offer a 14th century based product (bank account) protected by 1st century security mechanisms (a signature)


Johan Hellman reposted

Rational mathematical response: "This is a foolish act of innumeracy" Behavioral/Psychological response: "It depends upon your specific financial circumstances + your tolerance for risk, debt, and uncertainty." Your right answer depends upon you & your personality...

Columna | "Nos resulta imposible celebrar la inteligencia porque vivimos en un mundo cuyo discurso lo domina gente sin ella", por Xavi Sancho social.elpais.com/brgkt2

el_pais's tweet image. Columna | "Nos resulta imposible celebrar la inteligencia porque vivimos en un mundo cuyo discurso lo domina gente sin ella", por Xavi Sancho social.elpais.com/brgkt2


Johan Hellman reposted

40. Epistemic Luck: You know that if you’d lived in a different place or time, read different books, had different friends, you’d have different beliefs. And yet, you’re convinced that your current beliefs are correct. So, are you wrong, or the luckiest person ever?


Johan Hellman reposted

Imagine human history were written in a big 1,000-page book. Every page would cover 250 years. If we tore out all the pages, it would look like this. The very earliest permanent settlements started around page 760 and recorded history doesn't start until around page 775. 1/5

waitbutwhy's tweet image. Imagine human history were written in a big 1,000-page book. Every page would cover 250 years. If we tore out all the pages, it would look like this.

The very earliest permanent settlements started around page 760 and recorded history doesn't start until around page 775.

1/5

Johan Hellman reposted

Last week we got a bunch of European startup sales leaders together to talk about building sales teams. Here's our collective wisdom beautifully curated by @Siftedeu sifted.eu/articles/six-t…

paulorf's tweet image. Last week we got a bunch of European startup sales leaders together to talk about building sales teams. Here's our collective wisdom beautifully curated by @Siftedeu 
sifted.eu/articles/six-t…

Johan Hellman reposted

Digital private equity platform @moonfare partners with Swiss-based Dariu Foundation on a digital education project. spr.ly/60133ji7f


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