Socioplastics names a theory of how knowledge, institutions, infrastructures, and social forms acquire shape through designed relations between stability and plasticity. In the Pentagon Series, Anto Lloveras defines contemporary research as a living system that must digest abundance, cross a grammatical threshold, become legible to human and machine readers, exploit epistemic latency, and balance hardened nuclei with plastic peripheries. This framework connects directly with Hui’s digital objects, because metadata, schemas, and relations make entities exist operationally; with Siegert’s cultural techniques, because knowledge emerges through material operations such as grids, doors, registers, and filters; with Desrosières and Porter, because numbers and objectivity become political infrastructures that stabilise trust across distance; and with Roy and Caldeira, because cities reveal how planning, informality, walls, and enclaves produce social legibility through spatial form. Zafra adds the labouring subject: creative work becomes metabolised by platforms, visibility, and symbolic capital. Wilson and Negarestani extend the field further, showing memory and matter as unstable archives where monuments, photographs, oil, dust, and fragments act as agents of historical formation. Socioplastics synthesises these lines into one proposition: knowledge systems are neither passive repositories nor abstract theories, but plastic architectures that ingest, classify, harden, circulate, exclude, and recombine. Its case study is the corpus itself: a research body becomes powerful when its metadata, concepts, citations, archives, interfaces, and temporal delays are composed as infrastructure.