Well the thing with education is that there is always more to learn since knowledge keeps increasing. So arguably what you want to measure is productivity. Ha

Well the thing with education is that there is always more to learn since knowledge keeps increasing. So arguably what you want to measure is productivity. Has television, say PBS increased educational productivity. I would say yes. I remember watching Nova shows in science class and so forth. So yes TV has reduced costs. Books also increased productivity in the same way. Would remote learning reduce costs? Yes. Will AI systems reduce cost, yes.