You can put a piano in every classroom, but that won’t give you a developed music culture, because the music culture is embodied in people. … the music is not in the piano. And knowledge and edification is not in the computer. The computer is simply an instrument whose music is ideas. Virtually all learning difficulties that children face are caused by adults’ inability to set up reasonable environments for them. The biggest barrier to improving education for children, with or without computers, is the completely impoverished imaginations of most adults.”

Alan Kay explains why the computing revolution hasn’t happened yet.