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Kars Alfrink

@kars.leapfrog.nl

Designer turned design researcher. Postdoc at TU Delft. Exploring contestable AI. www.contestable.ai

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24.09.2023
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Latest posts by Kars Alfrink @kars.leapfrog.nl

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AI- & Algoritmeseminar 2026 - Aanmelden

I'll be speaking on human autonomy and AI at the Dutch Data Protection Authority's annual seminar on AI and algorithms. www.aanmelder.nl/174190/aanme...

10.03.2026 08:54 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Research School

Enjoyed attending the launch of the 4TU.Design United Research School. Jealous of all those Dutch design research PhDs who will undoubtedly benefit tremendously from its current and future course offerings. www.4tu.nl/du/Research-...

05.03.2026 14:42 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Digitale Autonomie Unconference 2026 , Fri, Jan 30, 2026, 10:30 AM | Meetup Er komt weer een Unconference, samen georganiseerd door Code for NL en het Digitale Autonomie Competentie Centrum! Net als in [2020](https://www.meetup.com/code-for-nl/even

I'll be in Amsterdam this Friday for the 2026 unconference on digital autonomy. www.meetup.com/code-for-nl/...

27.01.2026 13:04 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Many thanks to all the participants who enthusiastically joined the workshop (we exceeded our capacity) and to Iskander Smit and the rest of the ThingsCon team for having us.

15.01.2026 09:43 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This was a lot of fun to do. I really liked how critical thinking, art, hands-on making, and design futuring came together in a fairly accessible way. Hope to do more of this kind of work in the year to come.

15.01.2026 09:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

www.tudelft.nl/2025/io/dece...

15.01.2026 09:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Workshop participants gathered around a wooden table covered with glass jars filled with dark, muddy material, wires, and electronic components. Several people lean in to examine and connect microbial fuel cells, while others observe and smile. A digital multimeter and various electrodes are visible. A screen in the background shows a presentation, and workshop materials are scattered across the rustic tabletop.

Workshop participants gathered around a wooden table covered with glass jars filled with dark, muddy material, wires, and electronic components. Several people lean in to examine and connect microbial fuel cells, while others observe and smile. A digital multimeter and various electrodes are visible. A screen in the background shows a presentation, and workshop materials are scattered across the rustic tabletop.

Close-up of a microbial fuel cell: a glass jar filled with layered dark mud and water, topped with a black clock mechanism with red clock hands. Yellow and red wires connect the jar to a digital multimeter, which displays '0.00'. Additional clock mechanisms and electronic components are visible in the background on a wooden workshop table.

Close-up of a microbial fuel cell: a glass jar filled with layered dark mud and water, topped with a black clock mechanism with red clock hands. Yellow and red wires connect the jar to a digital multimeter, which displays '0.00'. Additional clock mechanisms and electronic components are visible in the background on a wooden workshop table.

A participant with arm tattoos draws with a blue marker on a large paper template during the scenario-building phase. The paper features hand-drawn sketches, including a wave/bird illustration and handwritten notes about β€˜unpredictable energy cadence’ and β€˜EU Law of Bacteria.’ Surrounding the workspace are glass jars with mud batteries, a multimeter, and colored markers.

A participant with arm tattoos draws with a blue marker on a large paper template during the scenario-building phase. The paper features hand-drawn sketches, including a wave/bird illustration and handwritten notes about β€˜unpredictable energy cadence’ and β€˜EU Law of Bacteria.’ Surrounding the workspace are glass jars with mud batteries, a multimeter, and colored markers.

Illustrated visual summary titled 'From Mud to Models' by Lena Trotereau for ThingsCon 2025. The colorful drawing in pink, blue, and white shows workshop concepts: people collaborating around an 'Electric Garden' table with mud batteries, an optimization stopwatch, measurement tools, a harvest station with plants, and a 'Living Energy' jar with bacteria. A circular workflow illustrates four steps of the process, featuring the quote β€˜Together we know more’ and themes such as teamwork, utilizing local soil, and adhering to nature's rhythm.

Illustrated visual summary titled 'From Mud to Models' by Lena Trotereau for ThingsCon 2025. The colorful drawing in pink, blue, and white shows workshop concepts: people collaborating around an 'Electric Garden' table with mud batteries, an optimization stopwatch, measurement tools, a harvest station with plants, and a 'Living Energy' jar with bacteria. A circular workflow illustrates four steps of the process, featuring the quote β€˜Together we know more’ and themes such as teamwork, utilizing local soil, and adhering to nature's rhythm.

Brief report of the "From Mud to Models" workshop on regenerative AI futures organized by Fieke Jansen, Sunjoo Lee, Lena Trotereau, and me at TH/NGS 2025.

15.01.2026 09:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Mine would be as follows, because I'm old.

1. Super Mario 64
2. The Legend of Zelda: Ocarina of Time
3. Papers, Please
4. Half-Life 2
5. Mass Effect
6. Deus Ex
7. Metroid Prime

13.01.2026 11:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
"Cute, small, utopian AI is possible" - ThingsCon 2025 Hot Take 03  - Kars Alfrink
"Cute, small, utopian AI is possible" - ThingsCon 2025 Hot Take 03 - Kars Alfrink YouTube video by ThingsCon

Had a great time recording this hot take about how "a different AI is possible" at TH/NGS 2025 with Peet Sneekes at the end of last year. youtu.be/OhvEZz0eJk4?...

06.01.2026 08:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Postdoc update – December 2025 – Leapfroglog

A look back on the past 6 months of "doing science" as a postdoc at TU Delft, working on contestable AI. Quite a few conference talks and workshops in this one. It was nice to engage with a wide range of communities. leapfrog.nl/blog/archive...

18.12.2025 07:48 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
People’s Compute: Design and the Politics of AI Infrastructures – Leapfroglog

Update! Now also available as blog post: leapfrog.nl/blog/archive...

15.12.2025 14:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

En tot slot dank aan het ondersteunende team waar ik zelf deel van uit maak, Felienne Hermans, Mark D., Eelco Herder, Emile van Bergen, Siri Beerends, Nolen Gertz, Paul Peters, Gerry McGovern, Kars Alfrink, en Jelle van der Ster.

15.12.2025 10:04 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Ook dank aan kernteamleden Roel Dobbe, Iris van Rooij, Lilian de Jong, Wouter Nieuwenhuizen, Marcela Suarez, Wiep Hamstra, en Olivia Guest voor alle noeste arbeid.

15.12.2025 10:04 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Met dank aan Cristina Zaga voor het initiatief.

15.12.2025 10:04 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

openletter.earth/nl/zorgvuldi...

15.12.2025 10:04 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Een andere AI is mogelijk. Als jij je, net als ik, zorgen maakt over beperkte economische belangen die de ontwikkeling van AI domineren, dan nodig ik je uit deze brief te ondertekenen en te delen, waarin wij onze politici oproepen om te werken aan AI-beleid dat bijdraagt aan sociale vooruitgang.

15.12.2025 10:04 πŸ‘ 3 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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As always, it was a welcome morale boost to demo and march with, in this case, over 7000 fellow students, teachers, and researchers. #woinactie

09.12.2025 15:23 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

On strike today, and off to Amsterdam in a bit to join my colleagues at the demo. Stop the cuts to higher education.

09.12.2025 07:57 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I'll just leave this here… Seaver, N. (2023). Attention Is All You Need: Humans and Computers in the Time of Neural Networks. In D. G. Burnett & J. E. H. Smith (Eds.), Scenes of Attention (pp. 230–248). Columbia University Press. doi.org/10.7312/burn...

08.12.2025 09:31 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Kom op 9 december in actie tegen de sloop van het hoger onderwijs Op 9 december komen we opnieuw in actie tegen de bezuinigingen op het hoger onderwijs. Ben jij er bij? Stop de sloop!

Next week, I will be at Dam Square in Amsterdam together with my colleagues to continue urging the parties forming the government not to make cuts to higher education. #woinactie www.aob.nl/actueel/stak...

02.12.2025 08:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
From Mud to Models – ThingsCon

At this year's ThingsCon TH/NGS conference, Fieke Jansen, Sunjoo Lee, Lena Trotereau, and myself will run a workshop that explores regenerative futures for community AI. thingscon.org/from-mud-to-...

01.12.2025 08:38 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Last week, I had the pleasure of hosting a delegation from Denmark and the UK for a full-day workshop about Contestable AI at TU Delft. www.tudelft.nl/2025/io/dece...

28.11.2025 08:14 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Looking forward to collectively exploring permacomputing, server collectives, and networks of consent at NIAS today and tomorrow. Many thanks to John Boy for the invitation. www.jboy.space/nias-worksho...

26.11.2025 06:43 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Now also available as a blog post: leapfrog.nl/blog/archive...

25.11.2025 12:26 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Had a great time presenting on designing AI work tools that preserve worker autonomy at the Enterprise UX conference today. My slides are available on my website, as usual. contestable.ai/wp-content/u...

21.11.2025 11:12 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Social Media: We Can Change the Defaults Christine Lemmer-Webber, best known as co-author of ActivityPub, the decentralized social networking protocol, will speak about the crisis technologists face. Why must we revise the default assumption...

Recommended event coming up with Christine Lemmer-Webber on rethinking web 2.0 and free and open source software orthodoxy. spui25.nl/programma/we...

14.11.2025 10:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Next week, I am speaking at Enterprise UX about designing AI-enabled work tools that promote autonomy. May contain references to Office Space and Luddism. Looking forward to it. www.enterpriseux.nl/program-2025...

11.11.2025 13:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Digitale Autonomie Unconference 2025 - 2, Fri, Oct 3, 2025, 9:30 AM | Meetup Er komt weer een Unconference in samenwerking met Code for NL! Net als in [2020](https://www.meetup.com/code-for-nl/events/268798380/?eventOrigin=group_calendar), [2023](ht

Unconference about the digital autonomy of Dutch public institutions is coming up this Friday in Amsterdam. www.meetup.com/code-for-nl/...

29.09.2025 07:20 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Here's a link to my slides (PDF): contestable.ai/wp-content/u...

19.09.2025 09:53 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

It is a teaser of sorts for a position paper I have been writing since earlier this year in the semi-open. I hope to do more work on this topic in the years ahead. So it was very productive to discuss this at the symposium.

19.09.2025 09:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0