An obsession with memory, a memory wave, a memory culture: these describe a current phenomenon that consists of the hypertrophy of memory, with manifestations that are cultural, social and political. The concept linked to individual psychology – personal memory, which we have known is uncertain and vulnerable to unconscious detours, at least since Freud – has been transferred to the collective plane and expanded as a viscous and extremely appealing matter. To such an extent that ‘memory’ has become a master-signifier of our time – a time that is subjected to the regime of the present, to what the historian François Hartog calls ‘presentism’. (On the question of memory, as it has been made the main topic of this issue of Electra, the theoretical contributions of this French historian to the ‘regimes of historicity’ are very important: for that reason, we conducted an interview with him, which we include here). But, even though our time is dominated by the historical category of the present, it is simultaneously obsessed with the past.