Marcel van Ackeren is Senior Lecturer for Ethics at the Faculty of Chemistry and Pharmacy at University of Wuerzburg and a Research Associate at the Uehiro Centre for Practical Ethics, University of Oxford. He worked as a Henkel Fellow/Research Associate at the Oxford Uehiro Centre for Practical Ethics and has held Fellowships and Positions at the Centre for Advanced Studies (Wissenschaftskolleg, Greifswald) and the Centre for Advanced Studies in Bioethics (Muenster). He also is Associate Member of the Faculty of Philosophy at Oxford where he started to work as a philosopher conducting doctoral research supervised by B. Williams and M. Frede.
Matthieu Queloz is an Ambizione Fellow of the Swiss National Science Foundation at the University of Bern. Before that, he was a Junior Research Fellow at Wolfson College, Oxford, and a Member of the Faculty of Philosophy at the University of Oxford for three years. In 2022, he was awarded the Amerbach Prize from the University of Basel as well as the Lauener Prize for Up-and-Coming Philosophers from the Lauener Foundation for Analytical Philosophy. He is the author of The Practical Origins of Ideas: Genealogy as Conceptual Reverse-Engineering (OUP, 2021) and The Ethics of Conceptualization: A Needs-Based Approach (OUP, 2025).