The Post-Turing condition: Conceptualising artificial subjectivity and synthetic sociality

Generative AI has become a social technology: its outputs enter human practices of interpretation and coordination. This Perspective suggests that the next shift may go further. As systems develop from representation-only models into situated agents and multi-agent ecosystems, parts of sensemaking itself (interpreting situations, stabilising reference, framing decisions) could become automated. We call this the Post-Turing Condition: the question is no longer whether AI imitates human intelligence, but whether AI systems come to participate in constructing social reality, with humans at risk of exclusion from meaning formation. The PRMO framework (Perception, Representation, Meaning, the Real) is offered as a lens for reading current design trajectories, and Quadrangulation is proposed as a design principle retaining the human subject as a constitutive reference.