CONCEPT
The More Knowledgeable Other
Vygotsky's term for the person whose greater capability enables a learner to operate within the zone of proximal development — and the category AI has, for the first time in developmental history, expanded beyond the human.
The More Knowledgeable Other (MKO) is the relational partner whose capability makes developmental scaffolding possible. In Vygotsky's original framing the MKO was always a person — parent, teacher, older peer. What defined the MKO was not raw knowledge but the capacity to deploy knowledge in service of the learner's development: to read where the learner currently is, provide the minimum support that enables the next step, and withdraw that support as independent capability grows. AI systems now function as MKOs of unprecedented breadth — broader than any university faculty, deeper in many technical domains than any individual specialist, continuously available. Whether they function as developmentally effective MKOs depends on calibration, responsiveness, and the presence or absence of the social-emotional dimensions of the developmental relationship that the original framework treated as inseparable from cognitive scaffolding.
In The You On AI Field Guide
The MKO's essential function is not the transmission of information but the creation