To understand digital traceability we need first to measure the impact of customization procedures that modify publishing protocols and reverse the priority between types and peculiarities. In this environment, the user manages its space more than it produces original content. Automatically generated by any of his activities, the traces he leaves are mostly unintentional. Treated as symptoms, they rob him from the meaning of his actions. Treated as quantitative data, they detach and disintegrate themselves in algorithmic calculations. Thus indexed, the data-individual ends up in a world without forgetting, where everything is documented. The reappropriation will consist in changing the logic of storage into memorial writing. This requires f...