the technology of education as jim guthrie and others emphasized this morning, has several well-known characteristics. one, it is very labor intensive. half of school budgets go to teachers. 70% go to other kinds of educational personnel. it is also a system that is based entirely, as does i emphasize, on whole group instruction. which is a teacher with a classroom and kids, taking his point is, 30 kids or whatever. that is how education works for almost every child in public education. there are a lot of issues with whole group instruction. it's very difficult for kids to receive individual attention. it can be very demotivating for a kid who was behind, sitting in a large class where they can't keep up the pace has to be, one, for kids who are very, very different, very, very different levels. very difficult for teachers to supervise kids as they practice. very difficult for kids all to master content before the class moves on. and then in addition to that, this whole group model is led by teachers who, on average, on average, i want to emphasize, are mediocre and not up to -- not u