In classrooms from Singapore to São Paulo, a quiet but consequential experiment is underway: schools are weaving artificial intelligence into the fabric of daily learning, uncertain of what the technology will build and what it may quietly erode. The central question is ancient even if the tools are new — how do we pass on not just knowledge, but the capacity to think? What is unfolding this academic year may not yield answers for a generation, yet the choices being made now will shape the minds that inherit whatever world comes next.