Preliminary announcement: "New programs and open problems in the foundation of mathematics and of its applications, in year 2000" November 13 and 14, 2000 Ecole Normale Superieure, 45, rue d'Ulm, 75005 Paris Salle Dussane Program: A. Connes "Non-commutative Geometry" Respondent: TBA J.-Y. Girard "Locus solum" Respondent: P.-L. Curien W. Lawvere "Dialectical foundations of, by, and for mathematics" Respondent: I. Moerdijk A. Macintyre "Prospects in logic" Respondent: M. F. Coste-Roy R. Milner "The flux of computation" Respondent: G. Berry Panel discussion : "Geometric Structures in Logic, Physics and Computing" with the invitees and the members of the working group "Geometrie et Cognition" (G. Longo, chair) The Conference is open to public and it is part of the "Atelier de Recherche" Geometrie et Cognition, partly supported by the MENRT (http://www.dmi.ens.fr/users/longo/geocogni.html). Contact: longo@dmi.ens.fr http://www.dmi.ens.fr/users/longo