The atmosphere was one of openness and conviviality: the meetings were not recorded and the participants felt that they had a maximum amount of freedom to be themselves and discuss their ideas.
[2] The group formed with the purpose of better informing political action in the light of recent scientific discoveries.
The group explored many topics and occasionally invited high status speakers to speak about their work.
Some of the disciplines regularly discussed were: anthropology, ecology, evolutionary psychology, economics and media studies.
[3] Some of the members of the group were: Henri Atlan, Jacques Attali, Jean-François Boissel, Robert Buron, Joël de Rosnay, Henri Laborit, André Leroi-Gourhan, Edgar Morin, René Passet, Michel Rocard, Jacques Robin, Jacques Sauvan, Jack Baillet, Alain Laurent and Michel Serres.