What is the fine-grained topic of the following text: So when I indulge in one of my frequent fantasies about how things would be different around this planet if I were supreme ruler of the universe, I don’t stop at picturing all the world’s children entering light-filled classrooms staffed by well-trained teachers who read to them every day no matter how old they are. Only return the topic.
Imagining improvements in global education if the speaker was in control.