 When you think about it, you've got a bus. If you go to a brick and mortar school building, you've got to be bused there. There's going to be class changes in the older grades, especially. There's downtime. For the younger kids, there's bathroom breaks. You've got to line them up, get them down the hallway. And one thing the study looked at, there's been multiple studies. And these were kind of brought together by the HSLDA, a homeschool association. When they looked at public school students, and the amount of time per hour, they're actually engaged in learning. You know, you're sitting there some of the time and you tune out. In their study of at least 100 students, they found it was about 16 minutes per hour, on average, that the student was engaged.