While I still read and comment occasionally on X, I mostly tweet on hci.social/@raphaelwimmer and bsky.app/profile/raphaelwimm… nowadays.

Highly concerned by #Germany deporting 81 Afghans with Taliban & #Qatar cooperation. More likely to follow! Urge immediate halt of deportations. Even if criminals, int’l law applies incl. non-refoulement; flights to #Afghanistan where they’ll face real danger is not the solution.

Ukraine is not alone. Germany together with our European allies stands united alongside #Ukraine - and against the Russian aggression. Ukraine can build on unwavering support from Germany, Europe and beyond. Their defence of democracy & their quest for peace & security is ours.

Nothing promotes your AI startup like AI-generated reply spam... x.com/search?q="170 char…

Any Israeli journalist publishing an investigation that suggests a war crime was committed by IDF forces would be at risk of imprisonment if this coalition bill is passed, international law expert tells Haaretz haaretz.com/israel-news/2025…

.@CDCgov staff have been instructed to remove pronouns from their email signatures by 5 pm today. This is part of the "Defending Women from Gender Ideology Extremism and Restoring Biological Truth to the Federal Government" Initiative.

die die Bundesländer zuständig wären. Es handelt sich somit um einen Schaufenster-Antrag, deshalb habe ich mich enthalten. Dazu habe ich eine persönliche Erklärung abgegeben👇🏼

For anyone who is unsure how a "my heart goes out to you" gesture typically looks like: youglish.com/pronounce/my …

We spent several hundred thousand US$ on failed experiments. Here’s why it was money well spent: Humans have spent over 150 years adding carbon dioxide to the atmosphere, and we have barely started removing it—we are still in the learning phase. For example, with enhanced rock weathering, we don’t know what exactly happens in the soil when we spread rock dust on fields. Figuring this out is important, yet it will require many new experiments. When you try things nobody has done before, you’re bound to hit roadblocks. In 2021 we were developing our first experiment to test the effectiveness of advanced rock weathering on croplands, and after 12 months the results simply did not match our projections. We hit the first roadblock. We simply could not show that we removed carbon. Okay… so… now what? We set up a second, more ambitious project by 7-folding the number of experiments, adding hundreds of sensors and moving into a more controlled environment. After 12 more months, the data told us that we again did not remove carbon from the atmosphere. We checked the data and the experiments again and again to find out if we were either measuring the data incorrectly or if the weathering process actually didn’t work as expected. But we weren’t doing it wrong! At this second roadblock, instead of giving up, we scaled up again. We ran an even more ambitious project—now with 400 different pots as we created the world’s largest greenhouse EW experiment along the way—and finally over the next 24 months we found some of the 400 tests worked exactly as originally expected. Our methods were never the issue, the problem was always the unlucky soil/rock combination we used in our two original experiments. We had made a very unfortunate choice. We failed. Or did we? We found that EW doesn’t work under certain conditions. That’s valuable information to have as we plan an even bigger experiment for this year. We failed fast, we did not give up, and we iterated further. Now we are much closer to impactful projects. By failing obviously and quickly, we’re closer to ultimate success. Stay tuned for a white paper documentation of the entire project, coming soon!

A Stanford communications professor and AI expert submitted an expert report in a case challenging Minnesota's deepfake law. The court was not impressed. The expert report included fake citations hallucinated by AI:

Is #AdrianDittmann really an alt account of #ElonMusk ? Here are their tweets (without retweets) for the past ten days. It seems as if Dittmann is in a different timezone, posting stuff even when Musk has long pauses and vice versa. Looks like two different people to me.

The world is facing a “climate breakdown," UN secretary general, Antonio Guterres, warned in his annual New Year speech today.
 He says the 10 hottest years on record have happened in the past decade, including 2024.

OpenAI's transition to a for-profit seemed inevitable given that all of its competitors are, but it's pretty disappointing that "ensure AGI benefits all of humanity" gave way to a much less ambitious "charitable initiatives in sectors such as health care, education, and science"

Wahlprogramm der Union @CDU @CSU verspricht 99 Mrd. € Steuerentlastungen im Jahr, 2,2% BIP. Überwiegend für Besserverdiener & Reiche. Mehr als die Hälfte (52 Mrd. €/Jahr) geht (zunächst) an die reichsten 10%. Ein Thread🧵 (1/22)⬇️ faz.net/aktuell/wirtschaft/d… tagesschau.de/inland/innenpo…

Vor 10 Jahren Reaktorkatastrophe in Japan: Fukushima ändert alles. Neben dem Atomausstieg brauchen wir mehr erneuerbare Energien. Bayern stärkt Photovoltaik und Re-Powering bei Windanlagen. Insgesamt ist eine moderne Strategie in der Energiepolitik nötig. Darin liegt die Zukunft.

Join as at #UniBayreuth as a Junior Professor (with Tenure Track) of Artificial Intelligence and Machine Learning! 🙌 Feel free to reach out with questions on the position, Bayreuth, the German academic system, etc.! @unibt #AI #ML uni-bayreuth.de/job-vacancy-…