Talks and Commentaries (not including job talks):

– “Unendlichkeit bei Zenon, Aristoteles und Euklid“, invited talk at the Oberseminar zur Geschichte der Mathematik, Wuppertal, January 25th, 2024.
– “Zeno’s traces in Plato’s Parmenides”, invited talk at the conference “Les présocratiques dans les déductions du Parménide de Platon”, Université Paris Est Créteil, Nov 23rd-24th, 2023.
– “The beginning of indirect proofs in Parmenides’ poem”, invited talk at the SAGP Conference (on zoom), Nov 5th, 2023.
– “The difficulties in talking about space and place – lessons from Plato’s Parmenides and Timaeus”, Keynote talk at the conference “A language for talking about spatio-temporal entities in Plato’s Timaeus?”, RUB, October 26th-27th, 2023.
– “Spatial Notions in Early Greek Thought”, at the conference “Philosophising with the Greats”, Oxford University, September 28th-30th, 2023.
– “Zeno’s Topos Paradoxes and some variations in Gorgias”, invited talk at the conference in honour of Livio Rossetti, University of Perugia; September 18th-20th, 2023.
– “The relationship between human and heavenly motion in Plato”, invited paper at the conference “Plato and change”, Università della Svizzera italiana, Lugano, September 15th-17th, 2023.
– “Apeiron in Zeno, Aristotle and Euclid”, invited paper at the Ancient Science conference, Tel Aviv university, July 19th, 2023.
– “Die Konzeptualisierung räumlicher Begriffe im frühgriechischen Denken ”, invited research seminar, Universität Wien, June 23nd, 2023.
– “Das Unendliche bei Aristoteles”, invited Bonitz Lecture, Universität Wien, June 22nd, 2023.
– “Apeiron in Zeno, Aristotle and Euclid”, invited talk at the history of mathematics group, Sorbonne, Paris, May 10th, 2023.
– „Author meets Critics session” on my Book The Concept of Motion in Ancient Greek Thought at the Pacific APA with critics Filip Karfik, John Palmer, and Jean De Groot, San Francisco, April 5th-8th, 2023.
– “The role of Proportions in Plato’s Timaeus – a possible rapprochement of body and soul?”, invited talk at the OIKOS work-in-progress day, Utrecht University, January 27th, 2023.
– “Eine Zeit für alles – Platons Vereinheitlichung der Zeitvorstellungen in der Antike“, invited talk at the Philosophischem Kolloquium, Universität Leipzig, January 12th, 2023.
– “Space and Void in Aristotle and his Predecessors”, invited talk at Beijing Normal University (online), December 15th, 2022.
– “Space and void in early Greek Thought”, invited talk at PhilEAs, the Philosophy Students’ Association of the University of Geneva, December 8th, 2022.
– “Notwendigkeit bei Platon”, invited talk at the Internationalen Kongress der Gesellschaft für antike Philosophie (GANPH), Marburg, October, 4th-7th, 2022.
– “The mathematisation of the universe – its beginnings in Plato’s Timaeus”, invited talk at the conference “History and Philosophy of Cosmology”, September 12th-16th, 2022, University of Milan.
– “The role of Proportions in Plato’s Timaeus – a possible rapprochement of body and soul?”, invited talk at the UNAM Ancient Philosophy and its Reception Seminar, Mexico (online), August 24th, 2022.
– “Zeno’s understanding of apeiron”, talk at the International Presocratics Conference, Delphi, June 27th- 1st July, 2022.
– “The Principle of Sufficient Reason in the Presocratics, Plato and Aristotle”, invited talk at the workshop “The Principle of Sufficient Reason”, Yale University, June 24th-26th, 2022.
– “Zeno’s Method and its mathematical and Eleatic predecessors”, talk at the conference “New Trend in Eleatism”, St. Andrews University, June 9th and 10th, 2022.
– “The Present as the Locus of Experience?”, talk at the conference “Now, Exaiphnês and the Present Moment in Ancient Philosophy”, RUB March 24th and 25th and 28th and 29th, 2022.
– “Das Problem der Bewegung und Zenons Paradoxien”, invited talk at the Ringvorlesung “Themen der Philosophie der Antike“ at the FAU Erlangen-Nürnberg (online), October 19th, 2021.
– “The birth of Western philosophy as the birth of monism”, talk at the online workshop Monism: Ancient and Modern, July 8th and 9th, 2021.
– “The Beginning and End of Motion in Aristotle”, invited talk at the Oxford/Siegen online conference Change and Changemakers, July 1st-2nd, 2021.
–“Eine Zeit für alles – die Vereinheitlichung der Zeitvorstellungen in der griechischen Antike“, invited talk at the Vortragsreihe "Konfigurationen der Zeit", Universität Trier, June 16th, 2021.
– “Temporal measurement in society and the natural world – Plato`s Timaeus and Laws”, invited talk at the online Symposium "Plato on time, eternity and the world", May 11th-13th, 2021.
– “Socrates the bully? Rudeness and cooperation in Plato’s Protagoras”, invited talk, together with Sarah Broadie, at the International Socratic Society Colloquium series (online), March 31st, 2021.
– “Paradoxes as philosophical method and their Zenonian origins”, invited talk at the Aristotelian Society, London, February 1st, 2021.
- “Void and space in the thought of the Presocratics, Plato, and Aristotle”, invited talk at the Classical Dialogues series, Classical Studies Program, Columbia University, October 30th, 2020.
– “Space and void in Greek Thought”, invited talk at the invited talk at the Undergraduate Society of St. Andrews, March 3rd, 2020.
– “Space and void in early Greek Thought”, invited talk at the Departmental Colloquium at the Univer-sity of Stirling, January 30th, 2020.
– “The principle of non-contradiction and Plato’s argument for the tripartion of the soul in Republic IV”, invited talk at the conference “Plato’s Republic”, University of Edinburgh, November 21st-24th, 2019.
– “Chronos as all-encompassing – Plato’s Unification of Time”, invited keynote talk at the conference "Time and Cosmogony in Plato and the Platonic Tradition", Autonomous University Barcelona, Octo-ber 22nd -23rd, 2019.
– “The relationship of Zeno and Parmenides according to Plato, Aristotle, and Eudemus - Reply to Richard McKirahan’s Lecture ‘Aristotle and Zeno’”, invited talk at the Eleatica, Fondazione Alario per Elea-Velia, Ascea, September 18-21, 2019
– “The role of mathematics in Plato’s Timaeus and his method of division in the Sophist”, invited talk at the Colloque “Divisions et Puissances chez Platon”, ENS, Paris, July 12th -13th, 2019.
– “Time and Temporal things”, invited talk at the Annual Conference of the School of Philosophy, Higher School of Economics (HSE), Moscow, April 22nd 2019.
– “The Labours of Zeno – a Supertask?”, invited talk at the Undergraduate Society of talk Edinburgh, April 11th, 2019.
– “Raum und Leere im frühgriechischen Denken“, invited talk at the University of Tübingen, Dec. 6th, 2018.
– “Zenons Raum- und Bewegunsparadoxien und ihr Parmenideischer Hintergrund“, invited talk at the University of Vienna, Nov. 27th, 2018.
– “Space and Place in Plato and Presocratic thought”, invited talk at the Southern Association for An-cient Philosophy (SAAP) Meeting, Cambridge, Sept 10th and 11th, 2018.
– “Plato’s understanding of chronos – the fundament for modern theories of time”, talk at the confer-ence “Plato’s Heritage from a Historical View: Intellectual Transformations and New Research Strate-gies”, St Petersburg, 28th-30th August 2018.
– “Die atomistischen Ursprünge wissenschaftlicher Erklärungen“, invited talk at Bochum University, Departmental Colloquium, July 11th, 2018.
– “Duration versus point in time – The conceptual complexity of the notion of hour in early Greek thought”, invited talk at the workshop “The Day Unit in Antiquity and the Middle Ages”, at the Israel Institute for Advanced Studies, June 10th and June 11th, 2018.
– “Chaos and figures of primary bodies in the Timaeus”, invited talk at the conference “Plato’s Timaeus II”, Paris, June 1st-2nd, 2018.
– “Time and space in Plato’s Parmenides”, invited talk at a workshop on "Cosmology in the Parmeni-des" of the Société d'Etudes Platoniciennes, Ecole Normale Supérieure, Paris, May 29th and 30th, 2018.
– “Divisibility or Indivisibility: the notion of continuity from the Presocratics to Aristotle”, workshop on Historical and Philosophical Perspectives on the Continuum at the Hebrew University, Jerusalem, May 8th-9th, 2018.
– “Cosmology and Ideal Society - the division of the day into hours in Plato’s Laws”, invited presenta-tion at the Institute for Advanced Studies in Jerusalem, March 5th, 2018.
– “The Labours of Zeno – a Supertask?”, invited talk at the Undergraduate Society of St. Andrews, No-vember 13th, 2017.
– “Thinking makes the World go round - Intellection and astronomy in Plato's Timaeus, invited talk at the Institute of Classical Studies ancient philosophy seminar, London, Nov. 6th, 2017.
– “Aristotle’s Theory of Semen in Generation of animals”, invited talk at the conference “Aristotle’s Generation of Animals, Tübingen, May 3rd-5th, 2017.
– “The World Soul in Plato’s Timaeus”, invited talk at the conference “Plato’s Timaeus I” at Brown University and Providence College, April 7–9, 2017.
– “The thinking of the World Soul – intellection and astronomy in Plato’s Timaeus”, Keynote lecture at the Central European graduate workshop in ancient philosophy, Budapest, March 24th-26th, 2017.
– “Time and Agency in Early Greek thinking”, talk at the Central APA Panel “Ancient and Contempo-rary notions of time, Kansas City, March 1st - 4th, 2017.
– “’Short time’ in Greek philosophy”, talk at the conference “Down to the Hour: Perspectives on Short Time in the Ancient Mediterranean”, at the University of Chicago, February 24-25th, 2017.
– “Aristotle’s Account of Measurement”, invited talk at the Institute of Advanced Studies, Durham, February 20th, 2017.
– “What is doing the explaining? An atomistic idea”, Keynote lecture at the Oxford Graduate Confer-ence in Philosophy, Oxford, November 12-13, 2016.
– “Aristotle’s Measurement Dilemma”, invited talk at the University of Oxford, October 27th, 2016.
– “Sufficient Reason in the Phaedo”, plenary talk (accepted by peer review) at the 11th Symposium Pla-tonicum in Brasilia, July 4th to 8th, 2016 (https://www.youtube.com/watch?v=iWZY_OCZvnY).
– “Aristotle’s Measurement Dilemma”, invited talk at the Universidade Estadual de Campinas, Brazil, July 1st-2nd, 2016.
– “The notion of continuity in Parmenides”, talk (accepted by peer review) at the 5th biennial Confer-ence of the International Association for Presocratic Studies (IAPS) in Austin, Texas, June 13th-17th, 2016. (Could not attend)
– “Living beings in Plato’s Cosmos”, invited talk at the Universidad Nacional Autónoma de México, Mexico City, May 26th -27th, 2016.
– “The troubles with motion: Aristotle’s reception of Plato’s Timaeus”, talk at the Conference “The reception of Plato’s Timaeus in Hellenistic Times” at Edinburgh University, April 1st–3rd, 2016.
– “Origins in Plato’s Timaeus”, invited Keynote lecture at the Cambridge Graduate Conference in An-cient Philosophy on ‘Archai and Geneseis: Theorising Origins in Ancient Philosophy’, Cambridge, March 18th-19th, 2016.
– “Temporality and Genre in Early Greek Literature”, invited talk at the Institute of Classical Studies ancient philosophy seminar, London, February 1st, 2016.
– “The knowability of physical processes in Plato” invited paper at a Workshop on Stability in Plato, HU-Berlin, Nov 13th, 2015.
– “What is doing the explaining? An atomistic idea”, invited talk at the University of Stirling, Novem-ber 5th, 2015.
– “The Unification of Time”, invited talk at the Undergraduate Society of St. Andrews, October 5th, 2015.
– “Ancient Notions of Time”, invited talk at Northwestern University, May 8th 2015.
– “Aristotle’s notion of measurement”, invited talk at the Center for the History of Science, University of Gent, 29th of April, 2015.
– “Ancient Notions of Time”, invited talk at the Northern Association for Ancient Philosophy meeting at Durham 14th-15th of April, 2015.
– “Chronos as all-encompassing – Plato’s Unification of Time”, talk (accepted by peer review) at the Annual Conference of the British Society for the History of Philosophy at York, 9th -11th of April, 2015.
– “Time and temporal things”, invited talk at the Classics Department of the University of St. Andrews in their Departmental Colloquium Series, February 20th , 2015.
– “Ancient Notions of Space”, invited talk at the Undergraduate Society of Glasgow University, Febru-ary 18th 2015.
– “Plato's account of the Forms in the Sophist and their relation to natural philosophy”, invited talk at the Université Paris Ouest Nanterre, January 30th 2015.
– “Chronos as all-encompassing – Plato’s Unification of Time”, talk (accepted by peer review) to be given at the American Philological Association Meeting in New Orleans, January 9th 2015.
– “Zeit im Wandel der Zeit, Antike Zeitbegriffe von Homer bis Platon”, Keynote lecture, at the Ancient Philosophy Workshop for Female Graduate Students and Early Career Researchers, HU-Berlin, Dec 1st, 2014.
– “What is doing the explaining? An atomistic idea”, invited talk at Glasgow University, November 11th, 2014.
– “Space and Place in Zeno”, talk (accepted by peer review) at the 4th biennial Conference of the Inter-national Association for Presocratic Studies (IAPS) in Thessaloniki, June 30th to July 4th, 2014.
– “Temporality and Genre in Early Greek Literature”, talk at an Aesthetics Work in Progress Workshop at the Philosophy Department of St. Andrews, June 4th 2014.
– “Ancient Notions of Space”, invited talk at the Department of Philosophy at the University of Ostra-va, May 6th 2014.
– “Ancient Notions of Space”, invited talk at the Undergraduate Society of St. Andrews, February 25th, 2014.
– “Making Motion intelligible – from the motions of the heavenly bodies in Plato to the motion of earthly objects in Aristotle”, talk at the 8th London Ancient Science Conference, The Institute of Clas-sical Studies, February 18th, 2014.
– “What is doing the explaining? An atomistic idea”, talk at the Winter Reflectorium, University of St. Andrews, December 9th 2013.
– “What is doing the explaining? An atomistic idea”, invited talk at Edinburgh University, November 8th, 2013.
– “Die Wissenschaftlichkeit der Naturbewegung bei Platon und Aristoteles - von der Bewegung himm-lischer zu der irdischer Körper”, invited talk at the 4th Kongress der Gesellschaft für antike Philosophie, München, October 2013.
– “Plato’s Forms in the language of the Eleusinian Mysteries”, talk (accepted by peer review) at the X. Symposium Platonicum, Pisa, July 15th-20th 2013.
– “Atomism in Plato’s Timaeus”, invited talk at the Conference “Philosophy in the Making: Early Re-ceptions of and Reactions to Presocratic Thought”, Stanford June 7-8th 2013.
– “Investigating nature in Aristotle - from doxa to epistêmê”, invited paper at a workshop on Doxa in Aristotle at Columbia University, April 27th, 2013.
– “Space in Ancient Times: From the Presocratics to Aristotle”, invited paper at a workshop on space at the Duke University April 19-20th, 2013
– Invited Commentary as a critic for an author meets critic session on Sarah Broadie’s book “Nature and Divinity in Plato's Timaeus”, at the Pacific APA in San Francisco, March 2013
– “Plato’s Forms in the language of the Eleusinian Mysteries”, invited talk at an ancient philosophy workshop at Dartmouth, February 16th-17th 2013.
– “The Labours of Zeno – a Supertask?”, talk (accepted by peer review) at the HOPOS (History of Phi-losophy of Science) conference in Halifax, June 21-24th 2012.
– “Aristotle on Continuity – Physics Book VI”, invited paper given at a workshop on Aristotle Physics at the Humboldt Universität Berlin, June 9th 2012.
– “Time and Space in Ancient Greece. ‘Time’ and ‘Space’ in Ancient Greece?”, invited talk at the Clas-sics Department at Yale University, within the Departmental Colloquium Series, 2011-2012: Lost in Time? Modern categories and Ancient “Realities”, January 20th 2012.
– Commentary on Marcus Folch’s “Immanent Poetics in Plato’s Laws: Politics and Performance in the Second-Best City”, at the MACTE conference at Yale University, Dec 10th 2011.
– “The intelligibility of processes in the realm of becoming”, talk at the Ancient Conference for Sarah Broadie “In the Steps of the Ancients”, University of St. Andrews, November 4th 2011.
– “The Ascent to Beauty: The Eleusinian Mysteries in Plato’s Symposium”, paper presented at the MACTE conference at Boston University, May 7th 2011.
– “Ontological and educational mimêsis in Plato’s Republic”, talk at the IX. Symposium Platonicum, Tokyo August 1st-7th 2010.
– “The Logical Origins of Parmenides’ Monism”, invited talk at the Oxford Ancient Philosophy Work-shop, June 17th, 2010.
– “Zeno’s Moving Rows: Double the time is half the time without atomism”, invited presentation at King’s College London, May 20th 2010.
– “The conceptual basis for motion and change in Greek Atomism”, talk at the 5th London Ancient Science Conference, UCL, March 10th, 2010.
– “Geschichtsphilosophie und Kosmologie: Zeitstrukturen in Platons Timaios”, invited talk at the Uni-versität Klagenfurt, January 18th, 2010.
– “Banning Nature from the Realm of Reason – Parmenides’ Challenge to Natural Philosophy”, presen-tation at the Pre-socratic Research Group of André Laks at the École Normale Supérieure in Paris, No-vember 25th, 2009.
– “Banning Nature from the Realm of Reason – Parmenides’ Challenge to Natural Philosophy”,  invited talk at the Boston Area Colloquium in Ancient Philosophy, and “Defending Parmenides – Zeno’s Para-doxes of Motion”, accompanying seminar, College of the Holy Cross, October 29th, 2009.
– “Plato's receptacle - a notion of space?”, talk (accepted by peer review) given at the Pacific APA in Vancouver, April 9, 2009.
– “Cosmology and Philosophy of History: Temporal Structures in Plato’s Timaeus”, invited fellows’ talk at the Whitney Humanities Center, Yale University, February 11th, 2009.
– “Plato’s notion of Space”, invited talk given at the Symposium in Honor of Steven J. Wagner's Re-tirement at the University of Illinois at Urbana-Champaign, April 15, 2008.
– “Planetary motions as a guide through history? Plato’s astronomy and philosophy of history in the Timaeus”, talk given at the conference “Plato’s Timaeus Today” at the University of Illinois at Urbana-Champaign, September 13-16, 2007.
– “Being initiated into Beauty. Plato’s use of the Eleusinian Mysteries in Symposium 209e – 211c”, talk given at the 103rd Annual Meeting of the Classical Association of the Middle West and South (CAMWS) in Cincinnati, April 11-14, 2007.
– Invited commentary on Sarah Broadie’s “Descent and Reminiscence in the Timaeus-Critias” at the Chicago Ancient Philosophy Conference “Philosophy and Religion in Ancient Greece” organised by the University of Chicago, the University of Illinois at Chicago and Northwestern University in Chicago, November 3 - 4, 2006.
– “Time reduced to space. Zeno’s fourth paradox”, talk at the Society of Ancient Greek Philosophy meeting in New York, October 20 – 22, 2006.
– “Das Ungenügen des metaphysischen Maßbegriffs für die Erfordernisse der Physik bei Aristoteles”, invited talk at the Gesellschaft für Antike Philosophie meeting in Leipzig, January 8, 2005.
– “Zeno’s Moving Rows: No atomists at work”, talk (accepted by peer review) at the Postgraduate ses-sion of the Joint session of the Aristotelian Society and the Mind Association, Canterbury, July 9-12, 2004.
– “Making movement an object of science - time in Plato and Aristotle”, talk at the Society of Ancient Greek Philosophy meeting in New York, October 31 - November 2, 2003.