- 40th International Barth Conference: Sin and guilt in a Post-Christian SocietyWhat does it mean to speak about guilt in a collective sense? Is it meaningful to think about the guilt of a people over against another people, or about guilt of humankind over against the earth? And how does collective guilt relate to individual guilt? How can we sensitively deal with individual guilt (e.g. that of theologians) instead of only charging one another with their faults? In what way can theologians contribute to a meaningful dealing with guilt in a post-Christian society? And how does a confrontation with these issues affect our view of our (innermost) selves?