Marcel Haas 🟥

@harcel.bsky.social

Data scientist in population health @ Leiden University Medical Center. Former astrophysicist: extronomer! Beer sommelier. Pythonista. Aspiring Bayesian. Dad. Puzzle solver and Go/Baduk player.

BREAKING: In court documents filed last week, Trump administration officials confirmed they terminated $7.5B in clean energy grants in October “based solely” on political criteria—focusing on states with Democratic leadership who voted for Kamala Harris in 2024.

A museum should absolutely have a good museum cafe. Or at the very least a nice place to sit and contemplate. Attention to the atmosphere of the cafe is something that sets a museum apart, for me.

Of course it's all small number statistics, but basically everyone I know who has received a VENI from NWO is an assistant professor. In my experience, this used to be "the grant for postdocs", which usually was the stepping stone to get a tenure track job. What's this shift all about?

Unbelievable, but today is the day I found Bookstor in The Hague. A lovely book store with an amazing selection. But also: a great, cozy coffee shop with very good coffee. The combination is heaven.

Interior of the store and coffee shop. A cozy corner with a couch and an espresso, next to a book shelf.

Unpopular opinion: being a postdoc shapes you as a scientist. Aside from job insecurity, this an essential phase of an academic career that should not be sidestepped by making people assistant professor right out of their PhD.

JOUW OUDERS HEBBEN NIET GEWERKT VOOR HUN OVERWAARDE DOMME GANS. En jij hebt al helemáál niks gedaan voor dat geld. Bovendien ben je al 50. Waar heb je die erfenis voor nodig? Nog een mooiere Seatsensofa waar je de hele dag op ken legge zappe? www.ad.nl/binnenland/b...

Blijf met je tengels af van de erfenis waar mijn ouders zo hard voor hebben gewerkt

Angela de Jong kent ze, mensen die graag veel meer belasting zouden betalen en verlangen naar een azc in de achtertuin. Zelf zit ze alleen net wat minder onbaatzuchtig in elkaar. ‘Hogere erfbelasting?...

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Causal analysis is over-rated. Also, the term is confusing (especially for the general audience), as it gives the impression that we figure out causal connections, which only under very rare conditions is true.

I work a lot with (and on) AI. Still, Claude did just impress me when I fed it a character based puzzle, on an image even. Here's the image. Can you find out what Claude suggested should be the first step?

The first inner page of The GCHQ Puzzle Book II.

Another full week of immersion in AI and medical technology for first year med school students has passed. This was the third year in a row meaning almost 1000 students have now followed the program. I feel exhausted, but also accomplished and proud.

The starting screen of the Grande Finale event.

Every once in a while, someone passes away completely unexpectedly. Even though you weren't very close it comes as a surprise and makes you think back at your interactions. I owe you more than I have ever expressed. RIP, Reinier.

Very nice to see the new logo and tag line of the Institute I work for at LUMC. I identify with this, more so than with the department name (an organizational level in between me and the Institute, interestingly).

Caecilia Institute for population health and data sciences - With a logo with a person in a circle with a bunch of zeros and ones.

I'm opposed to piracy. I'm very willing to pay for my books. But if you publish them under a very restricting DRM, that I can only read with a particular device, then what do you expect will happen...?