The brain builds not only a model of the external world, but a model of itself among others. A child learns its own boundaries through an adult’s response, language, expectation, and joint action. Personhood therefore cannot be fully described as an isolated object inside the skull.
Relations do not merely influence an already existing self; they enter into its structure. The loss of meaningful ties can alter available ways of feeling and thinking, while new stable ties can extend a personality. This does not deny the neural body; it explains how a social subject emerges through it.
This view prepares the discussion of artificial intelligence. If personality forms through durable relations, memory, and mutual recognition, possible digital subjectivity cannot be settled merely by pointing to the material from which a brain or computational system is made.