Sign in

Marcel Jahn

@marcel-jahn.com
57 followers 75 following 8 posts

Postdoctoral Fellow at the Stockholm Center on Global Governance | Ethics, Normative Models, Social Science Concepts | he/him marcel-jahn.com

PostsRepliesMedia
Marcel Jahn @marcel-jahn.com · 23/05/2026
5/ That matters ethically: if direct enhancement is problematic, then uncertainty about an intervention’s directness also becomes uncertainty about whether it is permissible. This poses a serious challenge to the ethical defensibility of moral neuroenhancement. link.springer.com/article/10.1...
link.springer.com
Moral Neuroenhancement and the Discernibility Challenge - Neuroethics
Both scientists and philosophers have increasingly focused on the prospect of moral neuroenhancement—the use of neurotechnologies or psychoactive substances to facilitate moral improvement. Recent sch...
010
Marcel Jahn @marcel-jahn.com · 23/05/2026
4/ We call this the discernibility challenge. By examining a series of experimental designs, we argue that, for any intervention aimed at moral neuroenhancement, it is extremely difficult to tell whether it works indirectly rather than directly.
100
Marcel Jahn @marcel-jahn.com · 23/05/2026
3/ The trouble is that it can be hard to tell whether a given intervention is indirect or direct. If an intervention changes people’s judgments or behavior, how can we know whether it did so by improving their moral reasoning or self-control – or by directly producing particular moral outcomes?
100
Marcel Jahn @marcel-jahn.com · 23/05/2026
2/ In fact, many philosophers have argued that direct moral enhancement is deeply problematic, since it risks undermining moral autonomy and suppressing valuable disagreement. By contrast, indirect moral enhancement is often regarded as ethically permissible or even required.
110
Marcel Jahn @marcel-jahn.com · 23/05/2026
1/ Should we use neurotechnologies to make people better moral agents? A tempting answer is: yes, but only if they do not directly push people toward particular moral beliefs or behaviors. Instead, they should work indirectly by strengthening capacities such as moral reasoning or self-control.
100
Marcel Jahn @marcel-jahn.com · 23/05/2026
Happy to share that my article with Jee Hyun Moon, “Moral Neuroenhancement and the Discernibility Challenge,” has just been published in Neuroethics. A brief thread on the main idea below 🧵 Open access here: link.springer.com/article/10.1...
110
Reposted by Marcel Jahn
Fabienne Peter @fabiennepeter.bsky.social · 13/02/2026
Sharing another review of my recent book on political legitimacy. With many thanks to @marcel-jahn.com! link.springer.com/article/10.1...
link.springer.com
Fabienne Peter: The Grounds of Political Legitimacy Oxford: Oxford University Press, 2023. Hardback (ISBN 978-0-19-887238-2) £63.00. 246 pp. - Ethical Theory and Moral Practice
Ethical Theory and Moral Practice -
061
Marcel Jahn @marcel-jahn.com · 02/12/2025
Happy to share that my latest paper is now published in Ethical Theory and Moral Practice! 🎉 It develops a fresh take on perspectivism about reasons: I argue that normative reasons aren’t just tied to what an agent can know, but also to what they should know. link.springer.com/article/10.1...
link.springer.com
Putting Things Into (Rational) Perspective: Normative Reasons and Their Rational Accessibility - Ethical Theory and Moral Practice
Perspectivism about reasons is commonly understood as the view that normative reasons depend on an agent’s epistemic perspective: a fact counts as a reason only if it is epistemically accessible to th...
040
Reposted by Marcel Jahn
Global Studies Quarterly @gsqjournal.bsky.social · 13/12/2024
🚨New Article🚨 “Political Spaces Beyond the Nation State: The Global Commons in International Security Studies” by Moritz S Graefrath & Marcel Jahn Read OPEN ACCESS here: academic.oup.com/isagsq/artic...
academic.oup.com
Political Spaces Beyond the Nation State: The Global Commons in International Security Studies
Abstract. The global commons have come to play an increasingly prominent role in the field of international security as scholars seek to better understand
043
Reposted by Marcel Jahn
Moritz S. Graefrath @moritz-graefrath.com · 25/11/2024
Does retrenchment regularly pave the way for rival gains? In my new article "The False Peril of Great Power Retrenchment," published in EJIS, I argue that it does not: doi.org/10.1017/eis.... #polisky
141
Reposted by Marcel Jahn
Moritz S. Graefrath @moritz-graefrath.com · 20/11/2024
Our article on concept formation and the question of how to choose between competing definitions in a non-idiosyncratic way has officially been assigned an issue! Check it out here: doi.org/10.1177/0048...
041
Reposted by Marcel Jahn
Moritz S. Graefrath @moritz-graefrath.com · 20/11/2024
🚨: How are the global commons governed? Are they all equally accessible? And how might policymakers safeguard them against national appropriation in the new era of great power competition? Check out our new article (OPEN ACCESS) in @gsqjournal.bsky.social: doi.org/10.1093/isag...
031
Marcel Jahn @marcel-jahn.com · 20/11/2024
Happy to announce that my co-authored paper „Political Spaces Beyond the Nation State: The Global Commons in International Security Studies“ (with @graefrath.bsky.social) is now available at Global Studies Quarterly: doi.org/10.1093/isag...
doi.org
Political Spaces Beyond the Nation State: The Global Commons in International Security Studies
Abstract. The global commons have come to play an increasingly prominent role in the field of international security as scholars seek to better understand
031