Questionnaire. Issue 1 (1st January 2020) - Lipovetsky, Gilles; Serroy, Jean; Citton, Yves; Cescosse, Jean-Pierre; Gefen, Alexandre; Heinich, Nathalie; Breton, David Le; Bruckner, Pascal; Paquet, Dominique; Roger, Philippe; Bilger, Philippe; Dock, Samuel; et al.