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Jakob Ortmann

@jakobortmann.eu
207 followers 278 following 44 posts

Philosophy of Science & Policy. Doctoral research fellow at @mapsproject.bsky.social in Hannover. Also, making open data more accessible for the German renewable energy transition with goal100.org jakobortmann.eu

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Jakob Ortmann @jakobortmann.eu · 26/08/2026
What are "looping effects", actually? Finally, @hsherl.bsky.social offers more clarity for understanding Ian Hacking's funny concept. Recommend: doi.org/10.1080/0951...
doi.org
Change in looping effects
This paper seeks an account of what types of reactions to being classified can trigger a demand to revise the original classifications and therefore instigate a feedback loop According to one view,...
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Economic thought @economicthought.bsky.social · 18/08/2026
Article: With great performativity comes great responsibility? Rethinking the role of economists, by Lukas Beck, Jakob Ortmann, Matthias Ackermann, Nadia Ruiz & Philippe Van Baßhuysen doi.org/10.1080/1350...
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Jakob Ortmann @jakobortmann.eu · 02/08/2026
Absolutely! But also pre-LLM..
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Jakob Ortmann @jakobortmann.eu · 31/07/2026
Thanks Anna! Very happy you like it!
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Anna Alexandrova @annaalexandrova.bsky.social · 31/07/2026
A great title for an important paper “With Great Performativity Comes Great Responsibility?”. Congratulations to @becklukas.bsky.social @jakobortmann.bsky.social and the rest of the team #philsci #econsky
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Jakob Ortmann @jakobortmann.eu · 31/07/2026
I am really happy this collab is out! It's trying to map out the space of possible positions people might have about responsibilities of economists under conditions of reflexive performativity. Looking forward to feedback on this.
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Jakob Ortmann @jakobortmann.eu · 28/07/2026
And shout out to the people at econmethod.org for funding this with their "Frontiers in PE" program!
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Jakob Ortmann @jakobortmann.eu · 28/07/2026
One of the best things about academic workshops and conferences is the coffee breaks. Earlier this year, we tried to do only those. It worked unexpectedly well. I wrote up the details if you want to try a different kind of academic workshopping, too! www.jakobortmann.eu/blog/ditch-t...
jakobortmann.eu
Ditch the Talks! The Living Schedule for a different kind of academic workshopping | Jakob Ortmann
If you have spent any amount of time in academia, you know the drill - at workshops and conferences, we give each other talks. At least that’s what I mostly…
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Jakob Ortmann @jakobortmann.eu · 21/07/2026
Happy my manuscript accepted in Philosophy of Science (@philscijournal.bsky.social) is now available! It's carving out a space for speech-act-theory and STS to co-exist, laying out conceptual foundations for further work in philsci. Comments welcome! doi.org/10.1017/psa....
doi.org
But what is ‘Performativity of Science’? Austin, Perlocutionary Sequels, and Referent Malleability | Philosophy of Science | Cambridge Core
But what is ‘Performativity of Science’? Austin, Perlocutionary Sequels, and Referent Malleability
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Jakob Ortmann @jakobortmann.eu · 27/05/2026
I see, I was hoping you would defend „pulling the rug as non-intervention“ as a cool and edgy position in phil of action though ;)
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Jakob Ortmann @jakobortmann.eu · 27/05/2026
shout out --> doi.org/10.1017/psa....
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Jakob Ortmann @jakobortmann.eu · 27/05/2026
After reading @miguelohn.bsky.social's amazing piece I'm not sure I understand what "intervening in a debate" means!
Screenshot of a paper by Miguel Ohnesorge, with the text highlighted "My goal is not to intervene in these debates. Instead, I will argue that they share a basic but unsubstantiated premise"
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Jakob Ortmann @jakobortmann.eu · 03/05/2026
I just launched this project with Goal100 - a map tool that makes open data necessary for green energy projects in Germany more accessible to municipalities, project firms, and the general public. If you like maps, green energy and open data, check it out! goal100.studio
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MAPS Project @mapsproject.bsky.social · 23/03/2026
1/2 Team member @jakobortmann.bsky.social has a new publication out in @philscijournal.bsky.social : "But what is 'Performativity of Science'? Austin, Perlocutionary Sequels, and Referent Malleability." philpapers.org/rec/ORTBWI
philpapers.org
Jakob Ortmann, But what is ‘Performativity of Science’? Austin, Perlocutionary Sequels, and Referent Malleability - PhilPapers
Ever since its introduction by John L. Austin, ‘performativity’ has meant many things to many scholars—something that did not change when phrases like ‘performativity of science’ became popular. Such ...
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Jakob Ortmann @jakobortmann.eu · 21/03/2026
Cool! Thanks for pointing me there
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Jakob Ortmann @jakobortmann.eu · 21/03/2026
it was this project in particular journals.sagepub.com/doi/10.3197/...
journals.sagepub.com
Theory Roulette: Choosing that Climate Change is not a Tragedy of the Commons - Jakob Ortmann, Walter Veit, 2023
Climate change mitigation has become a paradigm case both for externalities in general and for the game-theoretic model of the Tragedy of the Commons (ToC) in p...
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Jakob Ortmann @jakobortmann.eu · 21/03/2026
Really glad this point has supporters. Frustration on specifically this is what initially drew me to philsci as a profession, and holds me there still. Lack of collective action is rarely inevitable, and the tragedy of the commons is just the wrong game. Dangerous game.
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Jakob Ortmann @jakobortmann.eu · 21/03/2026
Shout out especially to @becklukas.bsky.social and @hsherl.bsky.social who consistently and rightfully pressed me on issues with earlier versions of this
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Jakob Ortmann @jakobortmann.eu · 21/03/2026
background is that the use of terminology of performativity in #philsci and #philecon has always been super vague in ways that are really puzzling, but combining it with super strong claims
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Jakob Ortmann @jakobortmann.eu · 21/03/2026
Super happy this paper got accepted for 'Philosophy of Science'! Its an attempt of reconciling speech act theory and STS in a way thats hopefully helpful to philosophers of science and controversies in values in science. #philsci #philsky #HPS @mapsproject.bsky.social philpapers.org/rec/ORTBWI
philpapers.org
Jakob Ortmann, But what is ‘Performativity of Science’? Austin, Perlocutionary Sequels, and Referent Malleability - PhilPapers
Ever since its introduction by John L. Austin, ‘performativity’ has meant many things to many scholars—something that did not change when phrases like ‘performativity of science’ became popular. Such ...
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Jakob Ortmann @jakobortmann.eu · 25/02/2026
Incredibly stoked to welcome 12 talented young economists and philosophers this week for our phil-econ-model-lab.org. We're trying a different workshop format: online talks before meetup, then collaborative sessions in person. Will follow up with results, first day was extremely promising.
phil-econ-model-lab.org
Phil-Econ Model-Lab | Phil-Econ-Model-Lab
An in-depth workshop for economists and philosophers of economics
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MODEL TRANSFER ERC Project @modeltransfer.bsky.social · 18/02/2026
Our team member, PhD candidate Murat Bakeev, spoke today at an online session of the Phil-Econ-Model-Lab (PEM-L). This workshop, funded by INEM, aims to promote collaboration among early-career scholars, with a particular focus on analyzing the role of value judgments in economic modeling.
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Jakob Ortmann @jakobortmann.eu · 25/02/2026
Hi Elmo, STS is what got this whole discussion started! Happy to talk
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Lukas Beck @becklukas.bsky.social · 17/12/2025
New paper "Endogenous Preferences, Environmental Economics, and Welfare" accepted at Politics, Philosophy & Economics. In it, I argue for how we should address endogenous preferences in the welfare assessment of large-scale policy interventions (e.g., a carbon tax). Penultimate version here👇
lukasbeck.co
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MAPS Project @mapsproject.bsky.social · 29/10/2025
Last Monday, Kevin Elliot gave a talk on "Revisiting Values and Science Through the Lens of Reflexive Performativity," which is a paper in collaboration with MAPS team member @jakobortmann.bsky.social.
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Jakob Ortmann @jakobortmann.eu · 25/06/2025
Note: NATO spending targets refer to *public* spending, where as CC mitigation refers to *total* spending. So if we only compared public spending, this chart would look even more extreme.
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Jakob Ortmann @jakobortmann.eu · 25/06/2025
Putting spending targets into perspective serves as one of the most important reminders of this decade: climate action is possible, cheaper than usually framed as, and definitely cheaper than inaction.
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Jakob Ortmann @jakobortmann.eu · 25/06/2025
Determined climate action turns out really cheap in comparison. Among other things, this makes the opportunity costs of conflict stupendously gigantic - not even talking about matters of justice here.
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Jakob Ortmann @jakobortmann.eu · 25/06/2025
Here is a quick thought: The new NATO 5% spending goal may not sound like too much, but its actually much more than we would have needed to fix climate change (estimates from 2018) - see chart below.
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Jakob Ortmann @jakobortmann.eu · 27/05/2025
#philsky #econsky
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Jakob Ortmann @jakobortmann.eu · 27/05/2025
⏳Deadline approaching! Know any early-career scholars working on philosophy of econ or values in science? Please consider forwarding them our call for proposals at phil-econ-model-lab.org. We are assembling a group of young scholars to collaborate at the cutting-edge of these topics #philsi #econ
A screenshot of the website phil-econ-model-lab.org
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MAPS Project @mapsproject.bsky.social · 19/05/2025
We are pleased to invite you to the MAPS Symposium, taking place on June 4 and 5, 2025, at Koniglicher Pferdestall. Attendance is free and open to all. We have a great lineup! Join us for two days of engaging discussions and critical reflections.
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Jakob Ortmann @jakobortmann.eu · 17/04/2025
My Performative Paternalism paper is out now - looking forward to hear your thoughts, concerns, and whatnot. Its an attempt of cashing out some of the ethical / political issues surrounding performativity of science that seem really important, yet underdeveloped in the current literature.
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Jakob Ortmann @jakobortmann.eu · 15/04/2025
Oh what an honour! Wishing them luck for the final push
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Jakob Ortmann @jakobortmann.eu · 15/04/2025
Thanks Anna! You're exactly right - thats where it started. Indebted to many brilliant people at Cambridge HPS.
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Jakob Ortmann @jakobortmann.eu · 15/02/2025
Delighted to share my first contribution to the @mapsproject.bsky.social project got accepted for publication in the EJPS! It revises epistemic & normative arguments reg. performativity of science (e.g. self-fulfilling prophecies), and reaches an uncomfortable conclusion: performative paternalism!
philpapers.org
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Jakob Ortmann @jakobortmann.eu · 22/01/2025
Today I learned that at some point our department wasn’t allowed to have any books bc books are a fire hazard. Funny enough to ban books at a uni, but I wish they said the same thing about all the paper forms they make us print, fill and sign (and then of course scan again).
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Jakob Ortmann @jakobortmann.eu · 20/01/2025
Lots of interesting problems to solve there!
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Jakob Ortmann @jakobortmann.eu · 20/01/2025
This project was kicked-off by a great paper by @inkerikoskinen.bsky.social, which I recommend reading. While social epistemology talked about opacity & trust for years, debates on AIs got major attention for (seemingly) the same issues, but without much interaction to social epistemology.
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Jakob Ortmann @jakobortmann.eu · 20/01/2025
Happy to share a new paper of mine got accepted by Synthese! philpapers.org/archive/ORTO...
philpapers.org
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Lukas Beck @becklukas.bsky.social · 25/11/2024
CfP: What is the appropriate role of climate economics in decision-making and climate policy? What role do value judgments play in its models and methods? How does it relate to other disciplines? If you have answers, submit them to our topical collection for the EJPS: philsci.eu/Phil-Climate...
philsci.eu
European Philosophy of Science Association (EPSA) - Philosophical Perspectives on Climate Economics
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Jakob Ortmann @jakobortmann.eu · 25/11/2024
Busy here discussing a great paper by @inkerikoskinen.bsky.social on the intersection of social epistemology and AI in science! Recommend: doi.org/10.1080/0269...
doi.org
We Have No Satisfactory Social Epistemology of AI-Based Science
In the social epistemology of scientific knowledge, it is largely accepted that relationships of trust, not just reliance, are necessary in contemporary collaborative science characterised by relat...
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
True! But this still makes it consistent with a subset view in the sense that quant. evidence is special qual. evidence that by virtue of its special features has diff properties. Qualit. data already contains these relations, they are just not as cashed out. Quantification as a form of compression.
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
(e.g. word count (number), mentioned X (boolean), said Y is important (boolean), etc.) Sorry, this got longer than expected!
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
For practical reasons, this context is often stripped away and you end up with data that looks and feels quantitative. But the other way works, too! An interview comes with a lot of context, but requires further processing if you wanted to squeeze some of its information in numeric data types
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
(„I went to the machine and read of this value from the display, interpreting it such and such, not sure if something was off though and I went and asked my friend“; „Procedure X spat out this Excel sheet“).
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
All of them are qualitative for two reasons: 1. your reason: even a simple quantitative boolean requires interpretation, just like a long-form text does. 2. if you add the context back to „raw“ quantitative data, you can turn every quantitative datum into data that also looks and feels qualitative.
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
lending it to certain types of analysis. For example, you can easily aggregate number types (sums, medians) but cant do that with qualitative interviews.
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
Numeric data types (or booleans, or timestamps, or geospatial types, etc.) are typically (and meaningfully) referred to as quantitative because they are different from (longer) text, audio or image data, in the sense that they require different ways of processing,
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Jakob Ortmann @jakobortmann.eu · 18/11/2024
Thanks for asking! I will need to think about this harder, but my hunch is that quantitative data is qualitative data stripped away of certain information (e.g. contextual information) for some purpose (e.g. to fit into a (database) schema; or to make it useful for a certain type of analysis, etc.).
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