joe_agassi_1Joseph Agassi

Tel Aviv, Israel – Contributor 

Joseph Agassi, FRSC, studied at a rabbinical school, at the Hebrew University of Jerusalem (M. Sc., physics) and at the University of London, where he was assistant to Karl Popper (Ph. D., general science: logic and scientific method). He was a parachute instructor in the Israeli Defense Force. He is professor emeritus at Tel Aviv University and York University, Toronto and Membro Onorario del Corpo Accademico dell’Universita degli Studi “Gabriele d’Annunzio”, Chieti-Pescara, Italia.  

Joe edited about ten books and authored about twenty plus about 600 contributions to the learned press. Among them are Science in Flux, Science and Society, Science and Culture, and Science and Its History; The Siblinghood of Humanity: Introduction to Philosophy, Towards a Rational Philosophical Anthropology; Liberal Nationalism for Israel: Towards an Israeli National Identity;  A Philosopher’s Apprentice – In Karl Popper’s WorkshopThe Hazard Called Education; Ludwig Wittgenstein’s Philosophical Investigations: An Attempt at a Critical Rationalist AppraisalAcademic Agonies and How to Avoid Them.  He co-authored with Yehuda Fried Paranoia: A Study in Diagnosis and Psychiatry as Medicine; with Nathaniel Laor Diagnosis: Philosophical and Medical Perspectives; with Abraham Meidan Philosophy from a Skeptical Perspective; with Ian C. Jarvie A Critical Rationalist Aesthetics; and with David Harel Malevich: the Lost Paintings

Joseph can be contacted at agass[at]tauex[dot]tau[dot]ac[dot]il


ashwathAshwath

Belagavi, Kamataka, India – Contributor

Ashwath lives in India. He holds a Master’s Degree in Sociology. He
specializes in Sociology, Area Studies, Religious Studies and Intellectual
History. He has worked as columnist for some magazines and newspapers. He
is also a translator and has translated the works of Thoreau, Octavio Paz, Tomas
Transtromer and others in Indian Languages. He was also a member of many
research committees. He is a member of the Oxford Karl Popper Society, The
Mises Institute, the Society for French Studies UK and Progressive Writers
Association of India. 

He can be contacted at iashwath7[at]gmail[dot]com.


BorellaAugustina Borella

Buenos Aires, Argentina – Contributor

Augustina has an undergraduate and Ph.D degree in philosophy from Universidad del Norte Santo Tomás de Aquino) and University of Buenos Aires respectively. Currently, she teaches at undergraduate level at University of CEMA, Buenos Aires.  

Her research area is philosophy of science with an emphasis on the epistemology of economics. Her recent publications include: Modelos Económicos y Realidad; “Hayek in Lawson’s view: positivism, hermeneutics and ontological individualism”, Revista de instituciones, ideas y mercado, Vol. 66; “Pluralismo Narrativo para una Economía del Mundo Real”, Revista Empresa y Humanismo; “Del Círculo de Viena a Nuestros Días: Una Historia de Enredos”, Economía: Teoría y Práctica; “Fundamento Ontológico del Modelo en Hayek”, Procesos de Mercado. Revista Europea de Economía Política; and Trazos-Ensayos de filosofía para el mundo social.

Augustina can be reached at agustinamborella[at]hotmail[dot]com


luc castelein1Luc Castelein

Oudenaarde, Belgium – Contributor

Luc is a retired accountant and Linux aficionado.   He discovered the philosophy of Karl Popper in the mid-1980s and is the current administrator of the Karl Popper Facebook page to which he contributes weekly.

Luc was one of the co-hosts of the 24 hr. Transcontinental Popperian ZOOM Meet ‘n Greet of January 9-10, 2021.  He can be contacted at luc.castelein[at]telenet[dot]be.  

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Rafe Champion 2019Rafe Champion

Sydney, New South Wales, Australia – Contributor, Advisory Board

Rafe grew  up on a dairy farm in the far northwest of Tasmania and studied Agricultural Science at the University of Tasmania followed by post-graduate research in Adelaide. He moved into the social sciences in Sydney but did not achieve an academic career and spent most of his professional career in policy, planning and research on health and welfare issues. His main interest after he encountered Popper’s ideas on critical rationalism, objective knowledge & etc. was to explore and explain their implications and applications.  His first wife (Kilmeny Niland 1950-2009) was a talented and versatile artist and she created the beautiful Rathouse website. to provide a platform for Rafe’s interpretation of the work of Popper, Bartley III, Hayek and others including the great psychologists Karl Buhler and Ian D. Suttie.

Rafe was one of the organizers and hosts of the 24 hr. Transcontinental Popperian ZOOM Meet ‘n Greet of January 9-10, 2021.  To get in touch with Rafe, email rafe[dot]champion[at]gmail[dot]com.


danny-frederick2Danny Frederick(†)

Yeovil, Somerset, England, UK – Contributor

Danny Frederick was brought up in the old Notting Hill slums (long since demolished) and then a council estate in Shepherd’s Bush. He studied philosophy at the London School of Economics, where he first encountered the work of Karl Popper. He did postgraduate work in philosophy at Lancaster University and at Birkbeck College London. He also taught philosophy at King’s College London. He then worked for eighteen years in administration, management, and accountancy. He resigned from his job in 2006, having made sufficient money, and found himself gradually drawn back into academic philosophy, particularly the works of Popper and philosophers influenced by Popper.

Since November 2009 he has had forty-eight articles published, or accepted for publication, in peer-reviewed academic journals and books. Many of the articles expound or develop Popper’s work and apply Popper’s approach to questions in metaphysics, epistemology, ethics and politics. Danny’s first book, Freedom, Indeterminism, and Fallibilism, was published in 2020 in the Palgrave Studies in Classical Liberalism series. His second book, Against the Philosophical Tide: Essays in Popperian Critical Rationalism, was also published in 2020.  Visit Danny’s profile at independent.academia.edu to learn more about his work.

Danny(†) can be contacted at dannyfrederick77[at]gmail[dot]com.  


jon-guzmanJon Guze

Raleigh, NC, USA – Contributor

Jon Guze is Director of Legal Studies at the John Locke Foundation.  Before joining the John Locke Foundation, Jon practiced law in Durham, North Carolina for over 20 years. He received a J.D., with honors, from Duke Law School in 1994 and an A.B. in history from Harvard College in 1972. In between, he studied architecture and, as a Vice President at HOK, Inc., he managed numerous large architectural and engineering projects across the US and in the UK.

Jon lives in Durham, North Carolina with his wife of more than 40 years. He has four children and six grandchildren.

Jon can be reached at jguze[at]lockehq[dot]org.


134819877_436502054038643_3258863346352627410_nElyse Hargreaves

Brisbane, Queensland, Australia – Contributor

Elyse first heard of Karl Popper when she was 24 years old, while she was searching for answers to questions regarding the beginning of science and its history. Since then, she has been determined to spread Popper’s work in whatever way possible. Elyse has been given permission from the Karl Popper Library (where the copyright to Popper’s work remains) to publish the first Audiobook version of his Conjectures and Refutations which can be found at Elyse’s YouTube Channel. She is very passionate about this project and continues to work on it to this day. Elyse looks forward to the day where she can make an even bigger contribution to Popper’s work, by making his ideas more readily available to the public.  

Elyse was one of the hosts of the 24 hr. Transcontinental Popperian ZOOM Meet ‘n Greet of January 9-10, 2021.  Elyse can be contacted at elysehargreaves[at]gmail[dot]com.  


for websiteMargaretha “Jaimi” Hendrickx

Trumansburg, New York, USA – Blog Administrator, Advisory Board

I got to know Karl Popper’s philosophy in 1992 through his (1979) Objective Knowledge, An Evolutionary Approach when I was studying strategic management in the USA.  Popper made a difference in my life in that he was the first author who gave me a philosophical framework — his Three-worlds hypothesis — that I felt comfortable defending and expanding.  To be sure, I am fully aware of the many contradictions and inconsistencies in Popper’s philosophy but I treat them as opportunities for growth and learning; i.e.,  as evidence that Popper’s philosophical project was a work in progress when he died in 1994.  It is up to us to continue his work where he left it off by picking up some of these loose ends and developing them.  The particular loose ends on which I am working is Popper’s use  of metaphors and his metaphor theory-in-use. 

I was one of the organizers and hosts of the 24 hr. Transcontinental Popperian ZOOM Meet ‘n Greet of January 9-10, 2021.  To get in touch with me, email ourkarlpopper[at]gmail[dot]com.   


Paul Levinson paul levinson small

New York City, NY, USA – Contributor

Paul Levinson, PhD, is Professor of Communication & Media Studies at Fordham inNYC.  His nonfiction books, including The Soft Edge, Digital McLuhan, Realspace, Cellphone, New New Media, McLuhan in an Age of Social Media, and Fake News in Real Context have been translated into 15 languages. His science fiction novels include The Silk Code (winner of the Locus Award for Best First Science Fiction Novel of 1999), Borrowed Tides, The Consciousness Plague, The Pixel Eye, The Plot To Save Socrates, Unburning Alexandria, and Chronica. His award-nominated novelette, “The Chronology Protection Case,” was made into a short film and is on Amazon Prime Video. He appears on CBS News, CNN, MSNBC, Fox News, the Discovery Channel, National Geographic, the History Channel, and NPR.  His 1972 album, Twice Upon A Rhyme, was re-issued in 2010, and his new album, Welcome Up: Songs of Space and Time, was released in 2020. 

Paul Levinson can be reached at levinson[dot]paul[at]gmail[dot]com.   


Photo NicoNicolas Muller

Caluire-et-Cuire, Rhône, FranceContributor 

Nicolas obtained a master’s degree in philosophy in 1997 (4-year-degree). His thesis defense was on the calculus of predicates and infinity (Logic Of Quantifiers) . Then he graduated as a school teacher. Nicolas missed philosophy so much that in 2010, he decided to do another Master’s (5-year-degree). For that second degree, he defended a thesis on the foundation of mathematics and the question of paradoxes.  Nicolas has been a primary school teacher for 20 years. Most of the time he is busy teaching 6-year-olds to read and count.

Nicolas can be reached at nicolas-muller[at]numericable[dot]fr.


IMG_7707Jeremy Shearmur

Dumfries, Dumfries & Galloway, Scotland, UK – Contributor

Jeremy Shearmur was educated at the London School of Economics, where he also worked as Popper’s assistant.  He subsequently taught philosophy at Edinburgh, political theory at Manchester, and was Director of Studies at the Centre for Policy Studies in London.  He then worked as a Research Associate Professor at the Institute for Humane Studies at George Mason University, and subsequently taught political theory and then philosophy at the Australian National University.  He is now retired from the ANU as an Emeritus Fellow and is living in Dumfries in Scotland, where he is still very much engaged in academic work.  He has published Hayek and After and The Political Thought of Karl Popper, jointly edited several volumes including Popper’s After the Open Society and The Cambridge Companion to Popper, and many papers on philosophy, the history of political thought and the history of economics. His edition of Larry Briskman’s A Sceptical Theory of Scientific Inquiry: Problems and their Progress came out with Brill in 2020, and his edition of Hayek’s Law, Legislation of Liberty is due out with the University of Chicago Press in 2021.

Jeremy can be reached at Jeremy.Shearmur[at]anu[dot]edu[dot]au.


rod-thomas-1Rod Thomas

Newcastle Upon Tyne, Tyne & Wear, England, UK – Contributor

Rod was born in Wales. He was educated at the University of York, UK and presently works as a senior lecturer for the Newcastle Business School, Northumbria University, UK. Prior to this he worked in management for the UK National Health Service. He has published articles in Cambridge Journal of Economics, Philosophy of Management, Kybernetes, The Journal of Management in Medicine, The Journal of Organisational Transformation and Social Change and elsewhere.    

To learn more about Rod’s research interests and publications, click here. He can be contacted at rod.thomas[at]northumbria[dot]ac[dot]uk.  


dirk verhofstadtDirk Verhofstadt

Ghent, Belgium – Contributor

Dirk Verhofstadt (born 25 August 1955 in Dendermonde) is a Belgian liberal (Rawlsian) theorist and younger brother of former Belgian Prime Minister and former ALDE European Parliament Leader Guy Verhofstadt. He has a keen interest in political philosophy, and his philosophical outlook is influenced by Karl Popper, John Stuart Mill, Cesare Beccaria, Thomas Paine, Amartya Sen and Martha Nussbaum. He was professor Media and ethics at the University of Ghent. He has written 25 books, including ‘Human Liberalism’, ‘A Plea for Individualism‘, ‘The open society under attack’, ‘The History of Liberalism‘, ‘The Liberal Ideology’ (all in Dutch) and ‘The Liberal Canon’ (in English).

Dirk’s contact email is verhofstadt[dot]dirk[at]telenet[dot]be.


Phil WoodPhil Wood

Columbia, Missouri, USA – Contributor

Phil was one of the hosts of the 24 hr. Transcontinental Popperian ZOOM Meet ‘n Greet of January 9-10, 2021.  He can be contacted at phillipkwood[at]gmail[dot]com