PERSON
Lev Vygotsky
Soviet psychologist (1896–1934) whose zone of proximal development and sociocultural theory of mind provide the developmental vocabulary Gopnik uses to think about AI scaffolding.
Lev Vygotsky was a Soviet psychologist who died of tuberculosis at thirty-seven, leaving behind a body of work that would not be fully translated into English for decades but that has since become one of the foundational frameworks in developmental psychology and education. His central insight — that higher cognitive functions originate in social interaction before being internalized as individual capacities — overturned the image of the child as a self-contained cognitive system developing on its own. The zone of proximal development, the concept of scaffolding (later formalized by his Western inheritors), and the broader sociocultural theory of mind all descend from Vygotsky's work. In Gopnik's hands, these tools become the framework for analyzing how AI can support or undermine the fundamentally social process by which children build the cognitive architecture of their minds.
In The You On AI Field Guide
Vygotsky worked in extraordinary conditions. He wrote most of his major works in a decade of frantic productivity between his 1924 entry into psychology and his death in