Fake news, post-truth, rumors: what problems, what answers?

affiche colloque ens caphes fake news

Colloquium held as part of the Propublics exploratory project supported by IDEX PSL (ANR-10-IDEX-0001-02) led by Mathias Girel (UMS3610/USR3608, ENS), Daniel Cefaï (CEMS, EHESS), Emmanuel Henry (Université Paris-Dauphine, CNRS, UMR IRISSO), Nathalie Jas (INRA, RiTME).

In collaboration with :

- the Institut Pratique du Journalisme Dauphine | PSL

- the USR République des Savoirs, Equipes Centre Cavaillès et Mathesis (Florent Guénard), CNRS-Collège de France-ENS-PSL


June, Wednesday 5: from rumor to fake news

Morning: History of rumors

  • 9:00 - 9:30: welcome coffee
  • 9:30 - 9:45: welcome by the organizers
  • 9h:45 - 10:35 : Francis Larran (ANHIMA, Lycée Martin Luther King de Bussy-Saint-Georges): About the foolishness of the Athenians in front of rumours.
  • 10:30 - 11:25 : Guillaume Mazeau (CRH19, Université Paris 1): What the revolution does to rumor, what the rumor does to revolution: the political role of rumors and fake news during the French Revolution
  • 11:25 - 11:40 : Break
  • 11:40 a.m. - 12:30 p.m.: Marie Matard-Bonucci (IHTP, Université Paris 8): Truths and lies of anti-Semites in the contemporary era

Afternoon: Structure and genesis of rumors

  • 2:30 - 3:20 :  Julien Bonhomme (LAS, ENS): Scaling games. Rumors and witchcraft in Africa
  • 3:h20 - 4:10 : Magali Reghezza-Zit (CERES, ENS): Rumors and crisis. Example of the aftermath of Hurricane Irma in Saint Martin (2017)
  • 4:h10 - 4h30 : Break

4:30 - 6:00 Table-ronde: from rumor to fake news

With Sandra Laugier (ISJPS, Université Paris 1), Romain Badouard (CARISM, Université Paris 2), Manuel Cervera-Marzal (LabexMed, FNRS). 

June, Thursday 6: Fake news and information manipulated


  • 9:30 - 10:20: David Chavalarias (CAMS-EHESS / Institut des systèmes complexes), Beyond fake news : detection and mitigation of foreign online opinion manipulation
  • 10:20 - 11:10: Divina Frau-Meigs (CREW, Université Sorbonne Nouvelle, member of the EU High Level Expert Group on Disinformation), A Directory of Solutions: Self-regulation, Regulation and Education
  • 11:10 - 11:30: Break
  • 11:30 a.m. - 12:10 p.m.: Sylvain Delouvée (LP3C, Rennes II), Fake news, transmission and support: the challenge of education.


  • 2:30 - 3:20 : Dominique Cardon (Medialab SciencesPo), Fake news and the new paths of digital information.

Tables rondes: How to handle fake news?

In collaboration with Institut Pratique du Journalisme

  • 3h30 - 3h40: Introduction by Pascal Guénée, director of IPJ Dauphine | PSL : « Why are fake news an issue for journalists »

3:40-5:10 : Table Ronde 1: What initiatives are being taken by journalism schools?

  • Eric Nahon, deputy director of IPJ Dauphine | PSL, facilitator.
  • Frederik Marain, université Antwerp (Anvers).
  • Alice Antheaume, executive directof of the école de journalisme de Sciences Po.
  • Corinne Vanmeris, director of study at ESJ Lille.
  • Jérémie Nicey, Laboratoire PRIM (Pratiques et Ressources de l'Information et des Médiations - EA 7503), Université de Tours. Responsable scientifique du projet de recherche ANR VIJIE (Vérification de l'information dans le journalisme, sur internet et dans l'espace public).

5:20-6:50 : Table Ronde 2 : Media responses and initiatives

  • Nicolas Jacobs, arbitrator of the France Télévision channels, facilitator.
  • Guillaume Daudin , AFP Factuel.
  • Anne Kerloch’, 20 minutes : projet Fake Off.
  • Estelle Cognacq,  France Info.

6:50: Feedback

With Sylvain Bourmeau, AOC Média, grand témoin.

June, Friday 7: Post-truth and new challenges to knowledge


9:30-10:20: Maurizio Ferraris (Turin), Communism realized
10:20-11:10: Sebastian Dieguez (Fribourg), Bullshit Epistemologies
11:10-11:30: Break
11:30 a.m.-12:10 p.m.: Giovanni Maddalena (Molise), Who’s afraid of Post Truth? 


2:30-3:20: Juliette Roussin (Université de Montréal), Does democracy require epistemic equality?
3:20-4:10: Gloria Origgi (Institut Jean Nicod, CNRS-ENS-EHESS), The Authority of Science in a Post-Truth World
4:10-4:25: Break
4:25-4:15: Jacopo Domenicucci (Phare, université Paris 1), A Trojan Horse in liberal counterspeech.
5:15-6:05 : Benjamin Icard (Institut Jean Nicod, CNRS-ENS-EHESS), Evaluating Informational Strategies: standard and non-standard cases of deception.
6:05-6:30 : conclusions.

End of the colloqium: 6h30 p.m.

5 June 2019 - 7 June 2019
Recherche - Colloque
École normale supérieure - PSL

Free entry, registration required.

Salle Dussane on June 5,

Salle Jean Jaurès on June 6 and 7.

Ecole normale supérieure, 45 rue d'Ulm, 75005 Paris
2019-06-05 9:00 2019-06-07 18:30 Europe/Paris Fake news, post-truth, rumors: what problems, what answers? Ecole normale supérieure, 45 rue d'Ulm, 75005 Paris