ResponsibilityMemory preserves the obligation toward what the field has received, inherited or used. AbsenceHistory names the histories missing from the official archive that continue to operate as pressure. KnowledgeFriction appears when knowing requires crossing harm, silence, delay or conflict. The triad defines an ethics of difficult evidence. Socioplastics works not only with what is available, but also with what is absent, erased or resistant to being known. To remember is to respond. To know is to create friction. The field becomes responsible when it does not confuse legibility with justice.